From b36426c8e3fe31c76299321720f60120be82dca4 Mon Sep 17 00:00:00 2001
From: Joel de Guzman <djowel@gmail.com>
Date: Sat, 16 Mar 2013 07:28:23 +0000
Subject: [PATCH] patches from tongari: allow custom Associative Sequence which
 doesn't have fusion::pair as elements.

[SVN r83455]
---
 .../boost/fusion/container/map/convert.hpp    |  30 ++
 .../fusion/container/map/detail/build_map.hpp |  21 +-
 .../container/map/detail/cpp03/as_map.hpp     |  28 +-
 .../container/map/detail/cpp03/convert.hpp    |   9 +-
 .../map/detail/cpp03/convert_impl.hpp         |   9 +-
 .../detail/cpp03/preprocessed/as_map10.hpp    | 100 ++--
 .../detail/cpp03/preprocessed/as_map20.hpp    | 200 +++----
 .../detail/cpp03/preprocessed/as_map30.hpp    | 300 +++++------
 .../detail/cpp03/preprocessed/as_map40.hpp    | 400 +++++++-------
 .../detail/cpp03/preprocessed/as_map50.hpp    | 500 +++++++++---------
 10 files changed, 823 insertions(+), 774 deletions(-)

diff --git a/include/boost/fusion/container/map/convert.hpp b/include/boost/fusion/container/map/convert.hpp
index b6d7285b..b5c3455e 100644
--- a/include/boost/fusion/container/map/convert.hpp
+++ b/include/boost/fusion/container/map/convert.hpp
@@ -9,6 +9,33 @@
 
 #include <boost/fusion/container/map/map.hpp>
 
+namespace boost { namespace fusion { namespace detail
+{
+    template <typename It, bool is_assoc>
+    struct pair_from
+    {
+        typedef typename result_of::value_of<It>::type type;
+
+        static inline type call(It const& it)
+        {
+            return *it;
+        }
+    };
+
+    template <typename It>
+    struct pair_from<It, true>
+    {
+        typedef typename result_of::key_of<It>::type key_type;
+        typedef typename result_of::value_of_data<It>::type data_type;
+        typedef typename fusion::pair<key_type, data_type> type;
+
+        static inline type call(It const& it)
+        {
+            return type(deref_data(it));
+        }
+    };
+}}}
+
 ///////////////////////////////////////////////////////////////////////////////
 // Without variadics, we will use the PP version
 ///////////////////////////////////////////////////////////////////////////////
@@ -30,6 +57,9 @@ namespace boost { namespace fusion
             detail::build_map<
                 typename result_of::begin<Sequence>::type
               , typename result_of::end<Sequence>::type
+              , is_base_of<
+                    associative_tag
+                  , typename traits::category_of<Sequence>::type>::value
             >
         {
         };
diff --git a/include/boost/fusion/container/map/detail/build_map.hpp b/include/boost/fusion/container/map/detail/build_map.hpp
index 8170b276..3f405d93 100644
--- a/include/boost/fusion/container/map/detail/build_map.hpp
+++ b/include/boost/fusion/container/map/detail/build_map.hpp
@@ -18,12 +18,13 @@
 
 namespace boost { namespace fusion { namespace detail
 {
-    template <typename First, typename Last
-      , bool is_empty = result_of::equal_to<First, Last>::value>
+    template <typename First, typename Last, bool is_assoc
+      , bool is_empty = result_of::equal_to<First, Last>::value
+    >
     struct build_map;
 
-    template <typename First, typename Last>
-    struct build_map<First, Last, true>
+    template <typename First, typename Last, bool is_assoc>
+    struct build_map<First, Last, is_assoc, true>
     {
         typedef map<> type;
         static type
@@ -48,15 +49,15 @@ namespace boost { namespace fusion { namespace detail
         }
     };
 
-    template <typename First, typename Last>
-    struct build_map<First, Last, false>
+    template <typename First, typename Last, bool is_assoc>
+    struct build_map<First, Last, is_assoc, false>
     {
         typedef
-            build_map<typename result_of::next<First>::type, Last>
+            build_map<typename result_of::next<First>::type, Last, is_assoc>
         next_build_map;
 
         typedef push_front_map<
-            typename result_of::value_of<First>::type
+            typename pair_from<First, is_assoc>::type
           , typename next_build_map::type>
         push_front;
 
@@ -65,9 +66,9 @@ namespace boost { namespace fusion { namespace detail
         static type
         call(First const& f, Last const& l)
         {
-            typename result_of::value_of<First>::type v = *f;
             return push_front::call(
-                v, next_build_map::call(fusion::next(f), l));
+                pair_from<First, is_assoc>::call(f)
+              , next_build_map::call(fusion::next(f), l));
         }
     };
 }}}
diff --git a/include/boost/fusion/container/map/detail/cpp03/as_map.hpp b/include/boost/fusion/container/map/detail/cpp03/as_map.hpp
index 3654a4de..5a1ea6ba 100644
--- a/include/boost/fusion/container/map/detail/cpp03/as_map.hpp
+++ b/include/boost/fusion/container/map/detail/cpp03/as_map.hpp
@@ -22,11 +22,11 @@
 
 namespace boost { namespace fusion { namespace detail
 {
-    template <int size>
+    template <int size, bool is_assoc>
     struct as_map;
 
-    template <>
-    struct as_map<0>
+    template <bool is_assoc>
+    struct as_map<0, is_assoc>
     {
         template <typename Iterator>
         struct apply
@@ -73,9 +73,12 @@ namespace boost { namespace fusion { namespace detail
     typename gen::BOOST_PP_CAT(I, BOOST_PP_INC(n))                              \
         BOOST_PP_CAT(i, BOOST_PP_INC(n)) = fusion::next(BOOST_PP_CAT(i, n));
 
-#define BOOST_FUSION_VALUE_OF_ITERATOR(z, n, data)                              \
-    typedef typename fusion::result_of::value_of<BOOST_PP_CAT(I, n)>::type      \
-        BOOST_PP_CAT(T, n);
+#define BOOST_FUSION_PAIR_FROM_ITERATOR(z, n, data)                             \
+    typedef pair_from<BOOST_PP_CAT(I, n), is_assoc> BOOST_PP_CAT(D, n);         \
+    typedef typename BOOST_PP_CAT(D, n)::type BOOST_PP_CAT(T, n);
+
+#define BOOST_FUSION_DREF_CALL_ITERATOR(z, n, data)                             \
+    gen::BOOST_PP_CAT(D, n)::call(BOOST_PP_CAT(i, n))
 
 #define BOOST_PP_FILENAME_1 <boost/fusion/container/map/detail/cpp03/as_map.hpp>
 #define BOOST_PP_ITERATION_LIMITS (1, FUSION_MAX_MAP_SIZE)
@@ -83,7 +86,8 @@ namespace boost { namespace fusion { namespace detail
 
 #undef BOOST_FUSION_NEXT_ITERATOR
 #undef BOOST_FUSION_NEXT_CALL_ITERATOR
-#undef BOOST_FUSION_VALUE_OF_ITERATOR
+#undef BOOST_FUSION_PAIR_FROM_ITERATOR
+#undef BOOST_FUSION_DREF_CALL_ITERATOR
 
 }}}
 
@@ -103,14 +107,14 @@ namespace boost { namespace fusion { namespace detail
 
 #define N BOOST_PP_ITERATION()
 
-    template <>
-    struct as_map<N>
+    template <bool is_assoc>
+    struct as_map<N, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            BOOST_PP_REPEAT(N, BOOST_FUSION_NEXT_ITERATOR, _)
-            BOOST_PP_REPEAT(N, BOOST_FUSION_VALUE_OF_ITERATOR, _)
+            BOOST_PP_REPEAT(BOOST_PP_DEC(N), BOOST_FUSION_NEXT_ITERATOR, _)
+            BOOST_PP_REPEAT(N, BOOST_FUSION_PAIR_FROM_ITERATOR, _)
             typedef map<BOOST_PP_ENUM_PARAMS(N, T)> type;
         };
 
@@ -121,7 +125,7 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             BOOST_PP_REPEAT(BOOST_PP_DEC(N), BOOST_FUSION_NEXT_CALL_ITERATOR, _)
-            return result(BOOST_PP_ENUM_PARAMS(N, *i));
+            return result(BOOST_PP_ENUM(N, BOOST_FUSION_DREF_CALL_ITERATOR, _));
         }
     };
 
diff --git a/include/boost/fusion/container/map/detail/cpp03/convert.hpp b/include/boost/fusion/container/map/detail/cpp03/convert.hpp
index b35d0d06..61ca722e 100644
--- a/include/boost/fusion/container/map/detail/cpp03/convert.hpp
+++ b/include/boost/fusion/container/map/detail/cpp03/convert.hpp
@@ -20,7 +20,14 @@ namespace boost { namespace fusion
         template <typename Sequence>
         struct as_map
         {
-            typedef typename detail::as_map<result_of::size<Sequence>::value> gen;
+            typedef typename
+                detail::as_map<
+                    result_of::size<Sequence>::value
+                  , is_base_of<
+                        associative_tag
+                      , typename traits::category_of<Sequence>::type>::value
+                >
+            gen;
             typedef typename gen::
                 template apply<typename result_of::begin<Sequence>::type>::type
             type;
diff --git a/include/boost/fusion/container/map/detail/cpp03/convert_impl.hpp b/include/boost/fusion/container/map/detail/cpp03/convert_impl.hpp
index 1634a44b..64ce63cb 100644
--- a/include/boost/fusion/container/map/detail/cpp03/convert_impl.hpp
+++ b/include/boost/fusion/container/map/detail/cpp03/convert_impl.hpp
@@ -28,7 +28,14 @@ namespace boost { namespace fusion
             template <typename Sequence>
             struct apply
             {
-                typedef typename detail::as_map<result_of::size<Sequence>::value> gen;
+                typedef typename
+                    detail::as_map<
+                        result_of::size<Sequence>::value
+                      , is_base_of<
+                            associative_tag
+                          , typename traits::category_of<Sequence>::type>::value
+                    >
+                gen;
                 typedef typename gen::
                     template apply<typename result_of::begin<Sequence>::type>::type
                 type;
diff --git a/include/boost/fusion/container/map/detail/cpp03/preprocessed/as_map10.hpp b/include/boost/fusion/container/map/detail/cpp03/preprocessed/as_map10.hpp
index 98dae25b..29a52545 100644
--- a/include/boost/fusion/container/map/detail/cpp03/preprocessed/as_map10.hpp
+++ b/include/boost/fusion/container/map/detail/cpp03/preprocessed/as_map10.hpp
@@ -8,14 +8,14 @@
 ==============================================================================*/
 namespace boost { namespace fusion { namespace detail
 {
-    template <>
-    struct as_map<1>
+    template <bool is_assoc>
+    struct as_map<1, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1;
-            typedef typename fusion::result_of::value_of<I0>::type T0;
+            
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0;
             typedef map<T0> type;
         };
         template <typename Iterator>
@@ -25,17 +25,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             
-            return result(*i0);
+            return result(gen::D0::call(i0));
         }
     };
-    template <>
-    struct as_map<2>
+    template <bool is_assoc>
+    struct as_map<2, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1;
+            typedef typename fusion::result_of::next<I0>::type I1;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1;
             typedef map<T0 , T1> type;
         };
         template <typename Iterator>
@@ -45,17 +45,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0);
-            return result(*i0 , *i1);
+            return result(gen::D0::call(i0) , gen::D1::call(i1));
         }
     };
-    template <>
-    struct as_map<3>
+    template <bool is_assoc>
+    struct as_map<3, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2;
             typedef map<T0 , T1 , T2> type;
         };
         template <typename Iterator>
@@ -65,17 +65,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1);
-            return result(*i0 , *i1 , *i2);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2));
         }
     };
-    template <>
-    struct as_map<4>
+    template <bool is_assoc>
+    struct as_map<4, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3;
             typedef map<T0 , T1 , T2 , T3> type;
         };
         template <typename Iterator>
@@ -85,17 +85,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2);
-            return result(*i0 , *i1 , *i2 , *i3);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3));
         }
     };
-    template <>
-    struct as_map<5>
+    template <bool is_assoc>
+    struct as_map<5, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4;
             typedef map<T0 , T1 , T2 , T3 , T4> type;
         };
         template <typename Iterator>
@@ -105,17 +105,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4));
         }
     };
-    template <>
-    struct as_map<6>
+    template <bool is_assoc>
+    struct as_map<6, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5> type;
         };
         template <typename Iterator>
@@ -125,17 +125,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5));
         }
     };
-    template <>
-    struct as_map<7>
+    template <bool is_assoc>
+    struct as_map<7, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6> type;
         };
         template <typename Iterator>
@@ -145,17 +145,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6));
         }
     };
-    template <>
-    struct as_map<8>
+    template <bool is_assoc>
+    struct as_map<8, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7> type;
         };
         template <typename Iterator>
@@ -165,17 +165,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7));
         }
     };
-    template <>
-    struct as_map<9>
+    template <bool is_assoc>
+    struct as_map<9, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8> type;
         };
         template <typename Iterator>
@@ -185,17 +185,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8));
         }
     };
-    template <>
-    struct as_map<10>
+    template <bool is_assoc>
+    struct as_map<10, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9> type;
         };
         template <typename Iterator>
@@ -205,7 +205,7 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9));
         }
     };
 }}}
diff --git a/include/boost/fusion/container/map/detail/cpp03/preprocessed/as_map20.hpp b/include/boost/fusion/container/map/detail/cpp03/preprocessed/as_map20.hpp
index 2907ab27..59d4c97c 100644
--- a/include/boost/fusion/container/map/detail/cpp03/preprocessed/as_map20.hpp
+++ b/include/boost/fusion/container/map/detail/cpp03/preprocessed/as_map20.hpp
@@ -8,14 +8,14 @@
 ==============================================================================*/
 namespace boost { namespace fusion { namespace detail
 {
-    template <>
-    struct as_map<1>
+    template <bool is_assoc>
+    struct as_map<1, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1;
-            typedef typename fusion::result_of::value_of<I0>::type T0;
+            
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0;
             typedef map<T0> type;
         };
         template <typename Iterator>
@@ -25,17 +25,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             
-            return result(*i0);
+            return result(gen::D0::call(i0));
         }
     };
-    template <>
-    struct as_map<2>
+    template <bool is_assoc>
+    struct as_map<2, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1;
+            typedef typename fusion::result_of::next<I0>::type I1;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1;
             typedef map<T0 , T1> type;
         };
         template <typename Iterator>
@@ -45,17 +45,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0);
-            return result(*i0 , *i1);
+            return result(gen::D0::call(i0) , gen::D1::call(i1));
         }
     };
-    template <>
-    struct as_map<3>
+    template <bool is_assoc>
+    struct as_map<3, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2;
             typedef map<T0 , T1 , T2> type;
         };
         template <typename Iterator>
@@ -65,17 +65,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1);
-            return result(*i0 , *i1 , *i2);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2));
         }
     };
-    template <>
-    struct as_map<4>
+    template <bool is_assoc>
+    struct as_map<4, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3;
             typedef map<T0 , T1 , T2 , T3> type;
         };
         template <typename Iterator>
@@ -85,17 +85,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2);
-            return result(*i0 , *i1 , *i2 , *i3);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3));
         }
     };
-    template <>
-    struct as_map<5>
+    template <bool is_assoc>
+    struct as_map<5, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4;
             typedef map<T0 , T1 , T2 , T3 , T4> type;
         };
         template <typename Iterator>
@@ -105,17 +105,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4));
         }
     };
-    template <>
-    struct as_map<6>
+    template <bool is_assoc>
+    struct as_map<6, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5> type;
         };
         template <typename Iterator>
@@ -125,17 +125,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5));
         }
     };
-    template <>
-    struct as_map<7>
+    template <bool is_assoc>
+    struct as_map<7, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6> type;
         };
         template <typename Iterator>
@@ -145,17 +145,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6));
         }
     };
-    template <>
-    struct as_map<8>
+    template <bool is_assoc>
+    struct as_map<8, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7> type;
         };
         template <typename Iterator>
@@ -165,17 +165,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7));
         }
     };
-    template <>
-    struct as_map<9>
+    template <bool is_assoc>
+    struct as_map<9, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8> type;
         };
         template <typename Iterator>
@@ -185,17 +185,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8));
         }
     };
-    template <>
-    struct as_map<10>
+    template <bool is_assoc>
+    struct as_map<10, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9> type;
         };
         template <typename Iterator>
@@ -205,17 +205,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9));
         }
     };
-    template <>
-    struct as_map<11>
+    template <bool is_assoc>
+    struct as_map<11, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10> type;
         };
         template <typename Iterator>
@@ -225,17 +225,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10));
         }
     };
-    template <>
-    struct as_map<12>
+    template <bool is_assoc>
+    struct as_map<12, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11> type;
         };
         template <typename Iterator>
@@ -245,17 +245,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11));
         }
     };
-    template <>
-    struct as_map<13>
+    template <bool is_assoc>
+    struct as_map<13, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12> type;
         };
         template <typename Iterator>
@@ -265,17 +265,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12));
         }
     };
-    template <>
-    struct as_map<14>
+    template <bool is_assoc>
+    struct as_map<14, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13> type;
         };
         template <typename Iterator>
@@ -285,17 +285,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13));
         }
     };
-    template <>
-    struct as_map<15>
+    template <bool is_assoc>
+    struct as_map<15, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14> type;
         };
         template <typename Iterator>
@@ -305,17 +305,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14));
         }
     };
-    template <>
-    struct as_map<16>
+    template <bool is_assoc>
+    struct as_map<16, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15> type;
         };
         template <typename Iterator>
@@ -325,17 +325,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15));
         }
     };
-    template <>
-    struct as_map<17>
+    template <bool is_assoc>
+    struct as_map<17, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16> type;
         };
         template <typename Iterator>
@@ -345,17 +345,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16));
         }
     };
-    template <>
-    struct as_map<18>
+    template <bool is_assoc>
+    struct as_map<18, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17> type;
         };
         template <typename Iterator>
@@ -365,17 +365,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17));
         }
     };
-    template <>
-    struct as_map<19>
+    template <bool is_assoc>
+    struct as_map<19, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18> type;
         };
         template <typename Iterator>
@@ -385,17 +385,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18));
         }
     };
-    template <>
-    struct as_map<20>
+    template <bool is_assoc>
+    struct as_map<20, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19> type;
         };
         template <typename Iterator>
@@ -405,7 +405,7 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19));
         }
     };
 }}}
diff --git a/include/boost/fusion/container/map/detail/cpp03/preprocessed/as_map30.hpp b/include/boost/fusion/container/map/detail/cpp03/preprocessed/as_map30.hpp
index fca89ae8..9de0b3c7 100644
--- a/include/boost/fusion/container/map/detail/cpp03/preprocessed/as_map30.hpp
+++ b/include/boost/fusion/container/map/detail/cpp03/preprocessed/as_map30.hpp
@@ -8,14 +8,14 @@
 ==============================================================================*/
 namespace boost { namespace fusion { namespace detail
 {
-    template <>
-    struct as_map<1>
+    template <bool is_assoc>
+    struct as_map<1, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1;
-            typedef typename fusion::result_of::value_of<I0>::type T0;
+            
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0;
             typedef map<T0> type;
         };
         template <typename Iterator>
@@ -25,17 +25,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             
-            return result(*i0);
+            return result(gen::D0::call(i0));
         }
     };
-    template <>
-    struct as_map<2>
+    template <bool is_assoc>
+    struct as_map<2, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1;
+            typedef typename fusion::result_of::next<I0>::type I1;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1;
             typedef map<T0 , T1> type;
         };
         template <typename Iterator>
@@ -45,17 +45,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0);
-            return result(*i0 , *i1);
+            return result(gen::D0::call(i0) , gen::D1::call(i1));
         }
     };
-    template <>
-    struct as_map<3>
+    template <bool is_assoc>
+    struct as_map<3, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2;
             typedef map<T0 , T1 , T2> type;
         };
         template <typename Iterator>
@@ -65,17 +65,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1);
-            return result(*i0 , *i1 , *i2);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2));
         }
     };
-    template <>
-    struct as_map<4>
+    template <bool is_assoc>
+    struct as_map<4, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3;
             typedef map<T0 , T1 , T2 , T3> type;
         };
         template <typename Iterator>
@@ -85,17 +85,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2);
-            return result(*i0 , *i1 , *i2 , *i3);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3));
         }
     };
-    template <>
-    struct as_map<5>
+    template <bool is_assoc>
+    struct as_map<5, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4;
             typedef map<T0 , T1 , T2 , T3 , T4> type;
         };
         template <typename Iterator>
@@ -105,17 +105,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4));
         }
     };
-    template <>
-    struct as_map<6>
+    template <bool is_assoc>
+    struct as_map<6, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5> type;
         };
         template <typename Iterator>
@@ -125,17 +125,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5));
         }
     };
-    template <>
-    struct as_map<7>
+    template <bool is_assoc>
+    struct as_map<7, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6> type;
         };
         template <typename Iterator>
@@ -145,17 +145,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6));
         }
     };
-    template <>
-    struct as_map<8>
+    template <bool is_assoc>
+    struct as_map<8, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7> type;
         };
         template <typename Iterator>
@@ -165,17 +165,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7));
         }
     };
-    template <>
-    struct as_map<9>
+    template <bool is_assoc>
+    struct as_map<9, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8> type;
         };
         template <typename Iterator>
@@ -185,17 +185,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8));
         }
     };
-    template <>
-    struct as_map<10>
+    template <bool is_assoc>
+    struct as_map<10, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9> type;
         };
         template <typename Iterator>
@@ -205,17 +205,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9));
         }
     };
-    template <>
-    struct as_map<11>
+    template <bool is_assoc>
+    struct as_map<11, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10> type;
         };
         template <typename Iterator>
@@ -225,17 +225,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10));
         }
     };
-    template <>
-    struct as_map<12>
+    template <bool is_assoc>
+    struct as_map<12, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11> type;
         };
         template <typename Iterator>
@@ -245,17 +245,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11));
         }
     };
-    template <>
-    struct as_map<13>
+    template <bool is_assoc>
+    struct as_map<13, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12> type;
         };
         template <typename Iterator>
@@ -265,17 +265,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12));
         }
     };
-    template <>
-    struct as_map<14>
+    template <bool is_assoc>
+    struct as_map<14, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13> type;
         };
         template <typename Iterator>
@@ -285,17 +285,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13));
         }
     };
-    template <>
-    struct as_map<15>
+    template <bool is_assoc>
+    struct as_map<15, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14> type;
         };
         template <typename Iterator>
@@ -305,17 +305,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14));
         }
     };
-    template <>
-    struct as_map<16>
+    template <bool is_assoc>
+    struct as_map<16, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15> type;
         };
         template <typename Iterator>
@@ -325,17 +325,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15));
         }
     };
-    template <>
-    struct as_map<17>
+    template <bool is_assoc>
+    struct as_map<17, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16> type;
         };
         template <typename Iterator>
@@ -345,17 +345,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16));
         }
     };
-    template <>
-    struct as_map<18>
+    template <bool is_assoc>
+    struct as_map<18, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17> type;
         };
         template <typename Iterator>
@@ -365,17 +365,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17));
         }
     };
-    template <>
-    struct as_map<19>
+    template <bool is_assoc>
+    struct as_map<19, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18> type;
         };
         template <typename Iterator>
@@ -385,17 +385,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18));
         }
     };
-    template <>
-    struct as_map<20>
+    template <bool is_assoc>
+    struct as_map<20, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19> type;
         };
         template <typename Iterator>
@@ -405,17 +405,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19));
         }
     };
-    template <>
-    struct as_map<21>
+    template <bool is_assoc>
+    struct as_map<21, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20> type;
         };
         template <typename Iterator>
@@ -425,17 +425,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20));
         }
     };
-    template <>
-    struct as_map<22>
+    template <bool is_assoc>
+    struct as_map<22, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21> type;
         };
         template <typename Iterator>
@@ -445,17 +445,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21));
         }
     };
-    template <>
-    struct as_map<23>
+    template <bool is_assoc>
+    struct as_map<23, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22> type;
         };
         template <typename Iterator>
@@ -465,17 +465,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22));
         }
     };
-    template <>
-    struct as_map<24>
+    template <bool is_assoc>
+    struct as_map<24, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23> type;
         };
         template <typename Iterator>
@@ -485,17 +485,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23));
         }
     };
-    template <>
-    struct as_map<25>
+    template <bool is_assoc>
+    struct as_map<25, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24> type;
         };
         template <typename Iterator>
@@ -505,17 +505,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24));
         }
     };
-    template <>
-    struct as_map<26>
+    template <bool is_assoc>
+    struct as_map<26, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25> type;
         };
         template <typename Iterator>
@@ -525,17 +525,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25));
         }
     };
-    template <>
-    struct as_map<27>
+    template <bool is_assoc>
+    struct as_map<27, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26> type;
         };
         template <typename Iterator>
@@ -545,17 +545,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26));
         }
     };
-    template <>
-    struct as_map<28>
+    template <bool is_assoc>
+    struct as_map<28, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27> type;
         };
         template <typename Iterator>
@@ -565,17 +565,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27));
         }
     };
-    template <>
-    struct as_map<29>
+    template <bool is_assoc>
+    struct as_map<29, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28> type;
         };
         template <typename Iterator>
@@ -585,17 +585,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28));
         }
     };
-    template <>
-    struct as_map<30>
+    template <bool is_assoc>
+    struct as_map<30, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29> type;
         };
         template <typename Iterator>
@@ -605,7 +605,7 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29));
         }
     };
 }}}
diff --git a/include/boost/fusion/container/map/detail/cpp03/preprocessed/as_map40.hpp b/include/boost/fusion/container/map/detail/cpp03/preprocessed/as_map40.hpp
index 6e800f60..89296e3d 100644
--- a/include/boost/fusion/container/map/detail/cpp03/preprocessed/as_map40.hpp
+++ b/include/boost/fusion/container/map/detail/cpp03/preprocessed/as_map40.hpp
@@ -8,14 +8,14 @@
 ==============================================================================*/
 namespace boost { namespace fusion { namespace detail
 {
-    template <>
-    struct as_map<1>
+    template <bool is_assoc>
+    struct as_map<1, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1;
-            typedef typename fusion::result_of::value_of<I0>::type T0;
+            
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0;
             typedef map<T0> type;
         };
         template <typename Iterator>
@@ -25,17 +25,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             
-            return result(*i0);
+            return result(gen::D0::call(i0));
         }
     };
-    template <>
-    struct as_map<2>
+    template <bool is_assoc>
+    struct as_map<2, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1;
+            typedef typename fusion::result_of::next<I0>::type I1;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1;
             typedef map<T0 , T1> type;
         };
         template <typename Iterator>
@@ -45,17 +45,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0);
-            return result(*i0 , *i1);
+            return result(gen::D0::call(i0) , gen::D1::call(i1));
         }
     };
-    template <>
-    struct as_map<3>
+    template <bool is_assoc>
+    struct as_map<3, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2;
             typedef map<T0 , T1 , T2> type;
         };
         template <typename Iterator>
@@ -65,17 +65,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1);
-            return result(*i0 , *i1 , *i2);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2));
         }
     };
-    template <>
-    struct as_map<4>
+    template <bool is_assoc>
+    struct as_map<4, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3;
             typedef map<T0 , T1 , T2 , T3> type;
         };
         template <typename Iterator>
@@ -85,17 +85,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2);
-            return result(*i0 , *i1 , *i2 , *i3);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3));
         }
     };
-    template <>
-    struct as_map<5>
+    template <bool is_assoc>
+    struct as_map<5, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4;
             typedef map<T0 , T1 , T2 , T3 , T4> type;
         };
         template <typename Iterator>
@@ -105,17 +105,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4));
         }
     };
-    template <>
-    struct as_map<6>
+    template <bool is_assoc>
+    struct as_map<6, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5> type;
         };
         template <typename Iterator>
@@ -125,17 +125,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5));
         }
     };
-    template <>
-    struct as_map<7>
+    template <bool is_assoc>
+    struct as_map<7, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6> type;
         };
         template <typename Iterator>
@@ -145,17 +145,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6));
         }
     };
-    template <>
-    struct as_map<8>
+    template <bool is_assoc>
+    struct as_map<8, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7> type;
         };
         template <typename Iterator>
@@ -165,17 +165,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7));
         }
     };
-    template <>
-    struct as_map<9>
+    template <bool is_assoc>
+    struct as_map<9, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8> type;
         };
         template <typename Iterator>
@@ -185,17 +185,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8));
         }
     };
-    template <>
-    struct as_map<10>
+    template <bool is_assoc>
+    struct as_map<10, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9> type;
         };
         template <typename Iterator>
@@ -205,17 +205,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9));
         }
     };
-    template <>
-    struct as_map<11>
+    template <bool is_assoc>
+    struct as_map<11, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10> type;
         };
         template <typename Iterator>
@@ -225,17 +225,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10));
         }
     };
-    template <>
-    struct as_map<12>
+    template <bool is_assoc>
+    struct as_map<12, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11> type;
         };
         template <typename Iterator>
@@ -245,17 +245,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11));
         }
     };
-    template <>
-    struct as_map<13>
+    template <bool is_assoc>
+    struct as_map<13, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12> type;
         };
         template <typename Iterator>
@@ -265,17 +265,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12));
         }
     };
-    template <>
-    struct as_map<14>
+    template <bool is_assoc>
+    struct as_map<14, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13> type;
         };
         template <typename Iterator>
@@ -285,17 +285,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13));
         }
     };
-    template <>
-    struct as_map<15>
+    template <bool is_assoc>
+    struct as_map<15, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14> type;
         };
         template <typename Iterator>
@@ -305,17 +305,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14));
         }
     };
-    template <>
-    struct as_map<16>
+    template <bool is_assoc>
+    struct as_map<16, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15> type;
         };
         template <typename Iterator>
@@ -325,17 +325,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15));
         }
     };
-    template <>
-    struct as_map<17>
+    template <bool is_assoc>
+    struct as_map<17, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16> type;
         };
         template <typename Iterator>
@@ -345,17 +345,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16));
         }
     };
-    template <>
-    struct as_map<18>
+    template <bool is_assoc>
+    struct as_map<18, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17> type;
         };
         template <typename Iterator>
@@ -365,17 +365,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17));
         }
     };
-    template <>
-    struct as_map<19>
+    template <bool is_assoc>
+    struct as_map<19, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18> type;
         };
         template <typename Iterator>
@@ -385,17 +385,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18));
         }
     };
-    template <>
-    struct as_map<20>
+    template <bool is_assoc>
+    struct as_map<20, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19> type;
         };
         template <typename Iterator>
@@ -405,17 +405,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19));
         }
     };
-    template <>
-    struct as_map<21>
+    template <bool is_assoc>
+    struct as_map<21, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20> type;
         };
         template <typename Iterator>
@@ -425,17 +425,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20));
         }
     };
-    template <>
-    struct as_map<22>
+    template <bool is_assoc>
+    struct as_map<22, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21> type;
         };
         template <typename Iterator>
@@ -445,17 +445,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21));
         }
     };
-    template <>
-    struct as_map<23>
+    template <bool is_assoc>
+    struct as_map<23, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22> type;
         };
         template <typename Iterator>
@@ -465,17 +465,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22));
         }
     };
-    template <>
-    struct as_map<24>
+    template <bool is_assoc>
+    struct as_map<24, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23> type;
         };
         template <typename Iterator>
@@ -485,17 +485,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23));
         }
     };
-    template <>
-    struct as_map<25>
+    template <bool is_assoc>
+    struct as_map<25, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24> type;
         };
         template <typename Iterator>
@@ -505,17 +505,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24));
         }
     };
-    template <>
-    struct as_map<26>
+    template <bool is_assoc>
+    struct as_map<26, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25> type;
         };
         template <typename Iterator>
@@ -525,17 +525,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25));
         }
     };
-    template <>
-    struct as_map<27>
+    template <bool is_assoc>
+    struct as_map<27, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26> type;
         };
         template <typename Iterator>
@@ -545,17 +545,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26));
         }
     };
-    template <>
-    struct as_map<28>
+    template <bool is_assoc>
+    struct as_map<28, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27> type;
         };
         template <typename Iterator>
@@ -565,17 +565,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27));
         }
     };
-    template <>
-    struct as_map<29>
+    template <bool is_assoc>
+    struct as_map<29, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28> type;
         };
         template <typename Iterator>
@@ -585,17 +585,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28));
         }
     };
-    template <>
-    struct as_map<30>
+    template <bool is_assoc>
+    struct as_map<30, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29> type;
         };
         template <typename Iterator>
@@ -605,17 +605,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29));
         }
     };
-    template <>
-    struct as_map<31>
+    template <bool is_assoc>
+    struct as_map<31, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30> type;
         };
         template <typename Iterator>
@@ -625,17 +625,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30));
         }
     };
-    template <>
-    struct as_map<32>
+    template <bool is_assoc>
+    struct as_map<32, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31> type;
         };
         template <typename Iterator>
@@ -645,17 +645,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31));
         }
     };
-    template <>
-    struct as_map<33>
+    template <bool is_assoc>
+    struct as_map<33, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32> type;
         };
         template <typename Iterator>
@@ -665,17 +665,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32));
         }
     };
-    template <>
-    struct as_map<34>
+    template <bool is_assoc>
+    struct as_map<34, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32; typedef typename fusion::result_of::value_of<I33>::type T33;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32; typedef pair_from<I33, is_assoc> D33; typedef typename D33::type T33;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32 , T33> type;
         };
         template <typename Iterator>
@@ -685,17 +685,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31); typename gen::I33 i33 = fusion::next(i32);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32 , *i33);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32) , gen::D33::call(i33));
         }
     };
-    template <>
-    struct as_map<35>
+    template <bool is_assoc>
+    struct as_map<35, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32; typedef typename fusion::result_of::value_of<I33>::type T33; typedef typename fusion::result_of::value_of<I34>::type T34;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32; typedef pair_from<I33, is_assoc> D33; typedef typename D33::type T33; typedef pair_from<I34, is_assoc> D34; typedef typename D34::type T34;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32 , T33 , T34> type;
         };
         template <typename Iterator>
@@ -705,17 +705,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31); typename gen::I33 i33 = fusion::next(i32); typename gen::I34 i34 = fusion::next(i33);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32 , *i33 , *i34);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32) , gen::D33::call(i33) , gen::D34::call(i34));
         }
     };
-    template <>
-    struct as_map<36>
+    template <bool is_assoc>
+    struct as_map<36, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32; typedef typename fusion::result_of::value_of<I33>::type T33; typedef typename fusion::result_of::value_of<I34>::type T34; typedef typename fusion::result_of::value_of<I35>::type T35;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32; typedef pair_from<I33, is_assoc> D33; typedef typename D33::type T33; typedef pair_from<I34, is_assoc> D34; typedef typename D34::type T34; typedef pair_from<I35, is_assoc> D35; typedef typename D35::type T35;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32 , T33 , T34 , T35> type;
         };
         template <typename Iterator>
@@ -725,17 +725,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31); typename gen::I33 i33 = fusion::next(i32); typename gen::I34 i34 = fusion::next(i33); typename gen::I35 i35 = fusion::next(i34);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32 , *i33 , *i34 , *i35);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32) , gen::D33::call(i33) , gen::D34::call(i34) , gen::D35::call(i35));
         }
     };
-    template <>
-    struct as_map<37>
+    template <bool is_assoc>
+    struct as_map<37, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32; typedef typename fusion::result_of::value_of<I33>::type T33; typedef typename fusion::result_of::value_of<I34>::type T34; typedef typename fusion::result_of::value_of<I35>::type T35; typedef typename fusion::result_of::value_of<I36>::type T36;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32; typedef pair_from<I33, is_assoc> D33; typedef typename D33::type T33; typedef pair_from<I34, is_assoc> D34; typedef typename D34::type T34; typedef pair_from<I35, is_assoc> D35; typedef typename D35::type T35; typedef pair_from<I36, is_assoc> D36; typedef typename D36::type T36;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32 , T33 , T34 , T35 , T36> type;
         };
         template <typename Iterator>
@@ -745,17 +745,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31); typename gen::I33 i33 = fusion::next(i32); typename gen::I34 i34 = fusion::next(i33); typename gen::I35 i35 = fusion::next(i34); typename gen::I36 i36 = fusion::next(i35);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32 , *i33 , *i34 , *i35 , *i36);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32) , gen::D33::call(i33) , gen::D34::call(i34) , gen::D35::call(i35) , gen::D36::call(i36));
         }
     };
-    template <>
-    struct as_map<38>
+    template <bool is_assoc>
+    struct as_map<38, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32; typedef typename fusion::result_of::value_of<I33>::type T33; typedef typename fusion::result_of::value_of<I34>::type T34; typedef typename fusion::result_of::value_of<I35>::type T35; typedef typename fusion::result_of::value_of<I36>::type T36; typedef typename fusion::result_of::value_of<I37>::type T37;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32; typedef pair_from<I33, is_assoc> D33; typedef typename D33::type T33; typedef pair_from<I34, is_assoc> D34; typedef typename D34::type T34; typedef pair_from<I35, is_assoc> D35; typedef typename D35::type T35; typedef pair_from<I36, is_assoc> D36; typedef typename D36::type T36; typedef pair_from<I37, is_assoc> D37; typedef typename D37::type T37;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32 , T33 , T34 , T35 , T36 , T37> type;
         };
         template <typename Iterator>
@@ -765,17 +765,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31); typename gen::I33 i33 = fusion::next(i32); typename gen::I34 i34 = fusion::next(i33); typename gen::I35 i35 = fusion::next(i34); typename gen::I36 i36 = fusion::next(i35); typename gen::I37 i37 = fusion::next(i36);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32 , *i33 , *i34 , *i35 , *i36 , *i37);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32) , gen::D33::call(i33) , gen::D34::call(i34) , gen::D35::call(i35) , gen::D36::call(i36) , gen::D37::call(i37));
         }
     };
-    template <>
-    struct as_map<39>
+    template <bool is_assoc>
+    struct as_map<39, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32; typedef typename fusion::result_of::value_of<I33>::type T33; typedef typename fusion::result_of::value_of<I34>::type T34; typedef typename fusion::result_of::value_of<I35>::type T35; typedef typename fusion::result_of::value_of<I36>::type T36; typedef typename fusion::result_of::value_of<I37>::type T37; typedef typename fusion::result_of::value_of<I38>::type T38;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32; typedef pair_from<I33, is_assoc> D33; typedef typename D33::type T33; typedef pair_from<I34, is_assoc> D34; typedef typename D34::type T34; typedef pair_from<I35, is_assoc> D35; typedef typename D35::type T35; typedef pair_from<I36, is_assoc> D36; typedef typename D36::type T36; typedef pair_from<I37, is_assoc> D37; typedef typename D37::type T37; typedef pair_from<I38, is_assoc> D38; typedef typename D38::type T38;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32 , T33 , T34 , T35 , T36 , T37 , T38> type;
         };
         template <typename Iterator>
@@ -785,17 +785,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31); typename gen::I33 i33 = fusion::next(i32); typename gen::I34 i34 = fusion::next(i33); typename gen::I35 i35 = fusion::next(i34); typename gen::I36 i36 = fusion::next(i35); typename gen::I37 i37 = fusion::next(i36); typename gen::I38 i38 = fusion::next(i37);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32 , *i33 , *i34 , *i35 , *i36 , *i37 , *i38);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32) , gen::D33::call(i33) , gen::D34::call(i34) , gen::D35::call(i35) , gen::D36::call(i36) , gen::D37::call(i37) , gen::D38::call(i38));
         }
     };
-    template <>
-    struct as_map<40>
+    template <bool is_assoc>
+    struct as_map<40, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39; typedef typename fusion::result_of::next<I39>::type I40;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32; typedef typename fusion::result_of::value_of<I33>::type T33; typedef typename fusion::result_of::value_of<I34>::type T34; typedef typename fusion::result_of::value_of<I35>::type T35; typedef typename fusion::result_of::value_of<I36>::type T36; typedef typename fusion::result_of::value_of<I37>::type T37; typedef typename fusion::result_of::value_of<I38>::type T38; typedef typename fusion::result_of::value_of<I39>::type T39;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32; typedef pair_from<I33, is_assoc> D33; typedef typename D33::type T33; typedef pair_from<I34, is_assoc> D34; typedef typename D34::type T34; typedef pair_from<I35, is_assoc> D35; typedef typename D35::type T35; typedef pair_from<I36, is_assoc> D36; typedef typename D36::type T36; typedef pair_from<I37, is_assoc> D37; typedef typename D37::type T37; typedef pair_from<I38, is_assoc> D38; typedef typename D38::type T38; typedef pair_from<I39, is_assoc> D39; typedef typename D39::type T39;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32 , T33 , T34 , T35 , T36 , T37 , T38 , T39> type;
         };
         template <typename Iterator>
@@ -805,7 +805,7 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31); typename gen::I33 i33 = fusion::next(i32); typename gen::I34 i34 = fusion::next(i33); typename gen::I35 i35 = fusion::next(i34); typename gen::I36 i36 = fusion::next(i35); typename gen::I37 i37 = fusion::next(i36); typename gen::I38 i38 = fusion::next(i37); typename gen::I39 i39 = fusion::next(i38);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32 , *i33 , *i34 , *i35 , *i36 , *i37 , *i38 , *i39);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32) , gen::D33::call(i33) , gen::D34::call(i34) , gen::D35::call(i35) , gen::D36::call(i36) , gen::D37::call(i37) , gen::D38::call(i38) , gen::D39::call(i39));
         }
     };
 }}}
diff --git a/include/boost/fusion/container/map/detail/cpp03/preprocessed/as_map50.hpp b/include/boost/fusion/container/map/detail/cpp03/preprocessed/as_map50.hpp
index 2cc45eeb..110985fc 100644
--- a/include/boost/fusion/container/map/detail/cpp03/preprocessed/as_map50.hpp
+++ b/include/boost/fusion/container/map/detail/cpp03/preprocessed/as_map50.hpp
@@ -8,14 +8,14 @@
 ==============================================================================*/
 namespace boost { namespace fusion { namespace detail
 {
-    template <>
-    struct as_map<1>
+    template <bool is_assoc>
+    struct as_map<1, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1;
-            typedef typename fusion::result_of::value_of<I0>::type T0;
+            
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0;
             typedef map<T0> type;
         };
         template <typename Iterator>
@@ -25,17 +25,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             
-            return result(*i0);
+            return result(gen::D0::call(i0));
         }
     };
-    template <>
-    struct as_map<2>
+    template <bool is_assoc>
+    struct as_map<2, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1;
+            typedef typename fusion::result_of::next<I0>::type I1;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1;
             typedef map<T0 , T1> type;
         };
         template <typename Iterator>
@@ -45,17 +45,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0);
-            return result(*i0 , *i1);
+            return result(gen::D0::call(i0) , gen::D1::call(i1));
         }
     };
-    template <>
-    struct as_map<3>
+    template <bool is_assoc>
+    struct as_map<3, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2;
             typedef map<T0 , T1 , T2> type;
         };
         template <typename Iterator>
@@ -65,17 +65,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1);
-            return result(*i0 , *i1 , *i2);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2));
         }
     };
-    template <>
-    struct as_map<4>
+    template <bool is_assoc>
+    struct as_map<4, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3;
             typedef map<T0 , T1 , T2 , T3> type;
         };
         template <typename Iterator>
@@ -85,17 +85,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2);
-            return result(*i0 , *i1 , *i2 , *i3);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3));
         }
     };
-    template <>
-    struct as_map<5>
+    template <bool is_assoc>
+    struct as_map<5, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4;
             typedef map<T0 , T1 , T2 , T3 , T4> type;
         };
         template <typename Iterator>
@@ -105,17 +105,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4));
         }
     };
-    template <>
-    struct as_map<6>
+    template <bool is_assoc>
+    struct as_map<6, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5> type;
         };
         template <typename Iterator>
@@ -125,17 +125,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5));
         }
     };
-    template <>
-    struct as_map<7>
+    template <bool is_assoc>
+    struct as_map<7, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6> type;
         };
         template <typename Iterator>
@@ -145,17 +145,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6));
         }
     };
-    template <>
-    struct as_map<8>
+    template <bool is_assoc>
+    struct as_map<8, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7> type;
         };
         template <typename Iterator>
@@ -165,17 +165,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7));
         }
     };
-    template <>
-    struct as_map<9>
+    template <bool is_assoc>
+    struct as_map<9, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8> type;
         };
         template <typename Iterator>
@@ -185,17 +185,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8));
         }
     };
-    template <>
-    struct as_map<10>
+    template <bool is_assoc>
+    struct as_map<10, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9> type;
         };
         template <typename Iterator>
@@ -205,17 +205,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9));
         }
     };
-    template <>
-    struct as_map<11>
+    template <bool is_assoc>
+    struct as_map<11, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10> type;
         };
         template <typename Iterator>
@@ -225,17 +225,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10));
         }
     };
-    template <>
-    struct as_map<12>
+    template <bool is_assoc>
+    struct as_map<12, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11> type;
         };
         template <typename Iterator>
@@ -245,17 +245,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11));
         }
     };
-    template <>
-    struct as_map<13>
+    template <bool is_assoc>
+    struct as_map<13, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12> type;
         };
         template <typename Iterator>
@@ -265,17 +265,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12));
         }
     };
-    template <>
-    struct as_map<14>
+    template <bool is_assoc>
+    struct as_map<14, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13> type;
         };
         template <typename Iterator>
@@ -285,17 +285,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13));
         }
     };
-    template <>
-    struct as_map<15>
+    template <bool is_assoc>
+    struct as_map<15, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14> type;
         };
         template <typename Iterator>
@@ -305,17 +305,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14));
         }
     };
-    template <>
-    struct as_map<16>
+    template <bool is_assoc>
+    struct as_map<16, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15> type;
         };
         template <typename Iterator>
@@ -325,17 +325,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15));
         }
     };
-    template <>
-    struct as_map<17>
+    template <bool is_assoc>
+    struct as_map<17, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16> type;
         };
         template <typename Iterator>
@@ -345,17 +345,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16));
         }
     };
-    template <>
-    struct as_map<18>
+    template <bool is_assoc>
+    struct as_map<18, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17> type;
         };
         template <typename Iterator>
@@ -365,17 +365,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17));
         }
     };
-    template <>
-    struct as_map<19>
+    template <bool is_assoc>
+    struct as_map<19, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18> type;
         };
         template <typename Iterator>
@@ -385,17 +385,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18));
         }
     };
-    template <>
-    struct as_map<20>
+    template <bool is_assoc>
+    struct as_map<20, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19> type;
         };
         template <typename Iterator>
@@ -405,17 +405,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19));
         }
     };
-    template <>
-    struct as_map<21>
+    template <bool is_assoc>
+    struct as_map<21, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20> type;
         };
         template <typename Iterator>
@@ -425,17 +425,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20));
         }
     };
-    template <>
-    struct as_map<22>
+    template <bool is_assoc>
+    struct as_map<22, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21> type;
         };
         template <typename Iterator>
@@ -445,17 +445,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21));
         }
     };
-    template <>
-    struct as_map<23>
+    template <bool is_assoc>
+    struct as_map<23, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22> type;
         };
         template <typename Iterator>
@@ -465,17 +465,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22));
         }
     };
-    template <>
-    struct as_map<24>
+    template <bool is_assoc>
+    struct as_map<24, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23> type;
         };
         template <typename Iterator>
@@ -485,17 +485,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23));
         }
     };
-    template <>
-    struct as_map<25>
+    template <bool is_assoc>
+    struct as_map<25, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24> type;
         };
         template <typename Iterator>
@@ -505,17 +505,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24));
         }
     };
-    template <>
-    struct as_map<26>
+    template <bool is_assoc>
+    struct as_map<26, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25> type;
         };
         template <typename Iterator>
@@ -525,17 +525,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25));
         }
     };
-    template <>
-    struct as_map<27>
+    template <bool is_assoc>
+    struct as_map<27, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26> type;
         };
         template <typename Iterator>
@@ -545,17 +545,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26));
         }
     };
-    template <>
-    struct as_map<28>
+    template <bool is_assoc>
+    struct as_map<28, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27> type;
         };
         template <typename Iterator>
@@ -565,17 +565,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27));
         }
     };
-    template <>
-    struct as_map<29>
+    template <bool is_assoc>
+    struct as_map<29, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28> type;
         };
         template <typename Iterator>
@@ -585,17 +585,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28));
         }
     };
-    template <>
-    struct as_map<30>
+    template <bool is_assoc>
+    struct as_map<30, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29> type;
         };
         template <typename Iterator>
@@ -605,17 +605,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29));
         }
     };
-    template <>
-    struct as_map<31>
+    template <bool is_assoc>
+    struct as_map<31, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30> type;
         };
         template <typename Iterator>
@@ -625,17 +625,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30));
         }
     };
-    template <>
-    struct as_map<32>
+    template <bool is_assoc>
+    struct as_map<32, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31> type;
         };
         template <typename Iterator>
@@ -645,17 +645,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31));
         }
     };
-    template <>
-    struct as_map<33>
+    template <bool is_assoc>
+    struct as_map<33, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32> type;
         };
         template <typename Iterator>
@@ -665,17 +665,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32));
         }
     };
-    template <>
-    struct as_map<34>
+    template <bool is_assoc>
+    struct as_map<34, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32; typedef typename fusion::result_of::value_of<I33>::type T33;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32; typedef pair_from<I33, is_assoc> D33; typedef typename D33::type T33;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32 , T33> type;
         };
         template <typename Iterator>
@@ -685,17 +685,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31); typename gen::I33 i33 = fusion::next(i32);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32 , *i33);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32) , gen::D33::call(i33));
         }
     };
-    template <>
-    struct as_map<35>
+    template <bool is_assoc>
+    struct as_map<35, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32; typedef typename fusion::result_of::value_of<I33>::type T33; typedef typename fusion::result_of::value_of<I34>::type T34;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32; typedef pair_from<I33, is_assoc> D33; typedef typename D33::type T33; typedef pair_from<I34, is_assoc> D34; typedef typename D34::type T34;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32 , T33 , T34> type;
         };
         template <typename Iterator>
@@ -705,17 +705,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31); typename gen::I33 i33 = fusion::next(i32); typename gen::I34 i34 = fusion::next(i33);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32 , *i33 , *i34);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32) , gen::D33::call(i33) , gen::D34::call(i34));
         }
     };
-    template <>
-    struct as_map<36>
+    template <bool is_assoc>
+    struct as_map<36, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32; typedef typename fusion::result_of::value_of<I33>::type T33; typedef typename fusion::result_of::value_of<I34>::type T34; typedef typename fusion::result_of::value_of<I35>::type T35;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32; typedef pair_from<I33, is_assoc> D33; typedef typename D33::type T33; typedef pair_from<I34, is_assoc> D34; typedef typename D34::type T34; typedef pair_from<I35, is_assoc> D35; typedef typename D35::type T35;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32 , T33 , T34 , T35> type;
         };
         template <typename Iterator>
@@ -725,17 +725,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31); typename gen::I33 i33 = fusion::next(i32); typename gen::I34 i34 = fusion::next(i33); typename gen::I35 i35 = fusion::next(i34);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32 , *i33 , *i34 , *i35);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32) , gen::D33::call(i33) , gen::D34::call(i34) , gen::D35::call(i35));
         }
     };
-    template <>
-    struct as_map<37>
+    template <bool is_assoc>
+    struct as_map<37, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32; typedef typename fusion::result_of::value_of<I33>::type T33; typedef typename fusion::result_of::value_of<I34>::type T34; typedef typename fusion::result_of::value_of<I35>::type T35; typedef typename fusion::result_of::value_of<I36>::type T36;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32; typedef pair_from<I33, is_assoc> D33; typedef typename D33::type T33; typedef pair_from<I34, is_assoc> D34; typedef typename D34::type T34; typedef pair_from<I35, is_assoc> D35; typedef typename D35::type T35; typedef pair_from<I36, is_assoc> D36; typedef typename D36::type T36;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32 , T33 , T34 , T35 , T36> type;
         };
         template <typename Iterator>
@@ -745,17 +745,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31); typename gen::I33 i33 = fusion::next(i32); typename gen::I34 i34 = fusion::next(i33); typename gen::I35 i35 = fusion::next(i34); typename gen::I36 i36 = fusion::next(i35);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32 , *i33 , *i34 , *i35 , *i36);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32) , gen::D33::call(i33) , gen::D34::call(i34) , gen::D35::call(i35) , gen::D36::call(i36));
         }
     };
-    template <>
-    struct as_map<38>
+    template <bool is_assoc>
+    struct as_map<38, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32; typedef typename fusion::result_of::value_of<I33>::type T33; typedef typename fusion::result_of::value_of<I34>::type T34; typedef typename fusion::result_of::value_of<I35>::type T35; typedef typename fusion::result_of::value_of<I36>::type T36; typedef typename fusion::result_of::value_of<I37>::type T37;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32; typedef pair_from<I33, is_assoc> D33; typedef typename D33::type T33; typedef pair_from<I34, is_assoc> D34; typedef typename D34::type T34; typedef pair_from<I35, is_assoc> D35; typedef typename D35::type T35; typedef pair_from<I36, is_assoc> D36; typedef typename D36::type T36; typedef pair_from<I37, is_assoc> D37; typedef typename D37::type T37;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32 , T33 , T34 , T35 , T36 , T37> type;
         };
         template <typename Iterator>
@@ -765,17 +765,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31); typename gen::I33 i33 = fusion::next(i32); typename gen::I34 i34 = fusion::next(i33); typename gen::I35 i35 = fusion::next(i34); typename gen::I36 i36 = fusion::next(i35); typename gen::I37 i37 = fusion::next(i36);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32 , *i33 , *i34 , *i35 , *i36 , *i37);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32) , gen::D33::call(i33) , gen::D34::call(i34) , gen::D35::call(i35) , gen::D36::call(i36) , gen::D37::call(i37));
         }
     };
-    template <>
-    struct as_map<39>
+    template <bool is_assoc>
+    struct as_map<39, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32; typedef typename fusion::result_of::value_of<I33>::type T33; typedef typename fusion::result_of::value_of<I34>::type T34; typedef typename fusion::result_of::value_of<I35>::type T35; typedef typename fusion::result_of::value_of<I36>::type T36; typedef typename fusion::result_of::value_of<I37>::type T37; typedef typename fusion::result_of::value_of<I38>::type T38;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32; typedef pair_from<I33, is_assoc> D33; typedef typename D33::type T33; typedef pair_from<I34, is_assoc> D34; typedef typename D34::type T34; typedef pair_from<I35, is_assoc> D35; typedef typename D35::type T35; typedef pair_from<I36, is_assoc> D36; typedef typename D36::type T36; typedef pair_from<I37, is_assoc> D37; typedef typename D37::type T37; typedef pair_from<I38, is_assoc> D38; typedef typename D38::type T38;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32 , T33 , T34 , T35 , T36 , T37 , T38> type;
         };
         template <typename Iterator>
@@ -785,17 +785,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31); typename gen::I33 i33 = fusion::next(i32); typename gen::I34 i34 = fusion::next(i33); typename gen::I35 i35 = fusion::next(i34); typename gen::I36 i36 = fusion::next(i35); typename gen::I37 i37 = fusion::next(i36); typename gen::I38 i38 = fusion::next(i37);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32 , *i33 , *i34 , *i35 , *i36 , *i37 , *i38);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32) , gen::D33::call(i33) , gen::D34::call(i34) , gen::D35::call(i35) , gen::D36::call(i36) , gen::D37::call(i37) , gen::D38::call(i38));
         }
     };
-    template <>
-    struct as_map<40>
+    template <bool is_assoc>
+    struct as_map<40, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39; typedef typename fusion::result_of::next<I39>::type I40;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32; typedef typename fusion::result_of::value_of<I33>::type T33; typedef typename fusion::result_of::value_of<I34>::type T34; typedef typename fusion::result_of::value_of<I35>::type T35; typedef typename fusion::result_of::value_of<I36>::type T36; typedef typename fusion::result_of::value_of<I37>::type T37; typedef typename fusion::result_of::value_of<I38>::type T38; typedef typename fusion::result_of::value_of<I39>::type T39;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32; typedef pair_from<I33, is_assoc> D33; typedef typename D33::type T33; typedef pair_from<I34, is_assoc> D34; typedef typename D34::type T34; typedef pair_from<I35, is_assoc> D35; typedef typename D35::type T35; typedef pair_from<I36, is_assoc> D36; typedef typename D36::type T36; typedef pair_from<I37, is_assoc> D37; typedef typename D37::type T37; typedef pair_from<I38, is_assoc> D38; typedef typename D38::type T38; typedef pair_from<I39, is_assoc> D39; typedef typename D39::type T39;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32 , T33 , T34 , T35 , T36 , T37 , T38 , T39> type;
         };
         template <typename Iterator>
@@ -805,17 +805,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31); typename gen::I33 i33 = fusion::next(i32); typename gen::I34 i34 = fusion::next(i33); typename gen::I35 i35 = fusion::next(i34); typename gen::I36 i36 = fusion::next(i35); typename gen::I37 i37 = fusion::next(i36); typename gen::I38 i38 = fusion::next(i37); typename gen::I39 i39 = fusion::next(i38);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32 , *i33 , *i34 , *i35 , *i36 , *i37 , *i38 , *i39);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32) , gen::D33::call(i33) , gen::D34::call(i34) , gen::D35::call(i35) , gen::D36::call(i36) , gen::D37::call(i37) , gen::D38::call(i38) , gen::D39::call(i39));
         }
     };
-    template <>
-    struct as_map<41>
+    template <bool is_assoc>
+    struct as_map<41, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39; typedef typename fusion::result_of::next<I39>::type I40; typedef typename fusion::result_of::next<I40>::type I41;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32; typedef typename fusion::result_of::value_of<I33>::type T33; typedef typename fusion::result_of::value_of<I34>::type T34; typedef typename fusion::result_of::value_of<I35>::type T35; typedef typename fusion::result_of::value_of<I36>::type T36; typedef typename fusion::result_of::value_of<I37>::type T37; typedef typename fusion::result_of::value_of<I38>::type T38; typedef typename fusion::result_of::value_of<I39>::type T39; typedef typename fusion::result_of::value_of<I40>::type T40;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39; typedef typename fusion::result_of::next<I39>::type I40;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32; typedef pair_from<I33, is_assoc> D33; typedef typename D33::type T33; typedef pair_from<I34, is_assoc> D34; typedef typename D34::type T34; typedef pair_from<I35, is_assoc> D35; typedef typename D35::type T35; typedef pair_from<I36, is_assoc> D36; typedef typename D36::type T36; typedef pair_from<I37, is_assoc> D37; typedef typename D37::type T37; typedef pair_from<I38, is_assoc> D38; typedef typename D38::type T38; typedef pair_from<I39, is_assoc> D39; typedef typename D39::type T39; typedef pair_from<I40, is_assoc> D40; typedef typename D40::type T40;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32 , T33 , T34 , T35 , T36 , T37 , T38 , T39 , T40> type;
         };
         template <typename Iterator>
@@ -825,17 +825,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31); typename gen::I33 i33 = fusion::next(i32); typename gen::I34 i34 = fusion::next(i33); typename gen::I35 i35 = fusion::next(i34); typename gen::I36 i36 = fusion::next(i35); typename gen::I37 i37 = fusion::next(i36); typename gen::I38 i38 = fusion::next(i37); typename gen::I39 i39 = fusion::next(i38); typename gen::I40 i40 = fusion::next(i39);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32 , *i33 , *i34 , *i35 , *i36 , *i37 , *i38 , *i39 , *i40);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32) , gen::D33::call(i33) , gen::D34::call(i34) , gen::D35::call(i35) , gen::D36::call(i36) , gen::D37::call(i37) , gen::D38::call(i38) , gen::D39::call(i39) , gen::D40::call(i40));
         }
     };
-    template <>
-    struct as_map<42>
+    template <bool is_assoc>
+    struct as_map<42, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39; typedef typename fusion::result_of::next<I39>::type I40; typedef typename fusion::result_of::next<I40>::type I41; typedef typename fusion::result_of::next<I41>::type I42;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32; typedef typename fusion::result_of::value_of<I33>::type T33; typedef typename fusion::result_of::value_of<I34>::type T34; typedef typename fusion::result_of::value_of<I35>::type T35; typedef typename fusion::result_of::value_of<I36>::type T36; typedef typename fusion::result_of::value_of<I37>::type T37; typedef typename fusion::result_of::value_of<I38>::type T38; typedef typename fusion::result_of::value_of<I39>::type T39; typedef typename fusion::result_of::value_of<I40>::type T40; typedef typename fusion::result_of::value_of<I41>::type T41;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39; typedef typename fusion::result_of::next<I39>::type I40; typedef typename fusion::result_of::next<I40>::type I41;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32; typedef pair_from<I33, is_assoc> D33; typedef typename D33::type T33; typedef pair_from<I34, is_assoc> D34; typedef typename D34::type T34; typedef pair_from<I35, is_assoc> D35; typedef typename D35::type T35; typedef pair_from<I36, is_assoc> D36; typedef typename D36::type T36; typedef pair_from<I37, is_assoc> D37; typedef typename D37::type T37; typedef pair_from<I38, is_assoc> D38; typedef typename D38::type T38; typedef pair_from<I39, is_assoc> D39; typedef typename D39::type T39; typedef pair_from<I40, is_assoc> D40; typedef typename D40::type T40; typedef pair_from<I41, is_assoc> D41; typedef typename D41::type T41;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32 , T33 , T34 , T35 , T36 , T37 , T38 , T39 , T40 , T41> type;
         };
         template <typename Iterator>
@@ -845,17 +845,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31); typename gen::I33 i33 = fusion::next(i32); typename gen::I34 i34 = fusion::next(i33); typename gen::I35 i35 = fusion::next(i34); typename gen::I36 i36 = fusion::next(i35); typename gen::I37 i37 = fusion::next(i36); typename gen::I38 i38 = fusion::next(i37); typename gen::I39 i39 = fusion::next(i38); typename gen::I40 i40 = fusion::next(i39); typename gen::I41 i41 = fusion::next(i40);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32 , *i33 , *i34 , *i35 , *i36 , *i37 , *i38 , *i39 , *i40 , *i41);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32) , gen::D33::call(i33) , gen::D34::call(i34) , gen::D35::call(i35) , gen::D36::call(i36) , gen::D37::call(i37) , gen::D38::call(i38) , gen::D39::call(i39) , gen::D40::call(i40) , gen::D41::call(i41));
         }
     };
-    template <>
-    struct as_map<43>
+    template <bool is_assoc>
+    struct as_map<43, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39; typedef typename fusion::result_of::next<I39>::type I40; typedef typename fusion::result_of::next<I40>::type I41; typedef typename fusion::result_of::next<I41>::type I42; typedef typename fusion::result_of::next<I42>::type I43;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32; typedef typename fusion::result_of::value_of<I33>::type T33; typedef typename fusion::result_of::value_of<I34>::type T34; typedef typename fusion::result_of::value_of<I35>::type T35; typedef typename fusion::result_of::value_of<I36>::type T36; typedef typename fusion::result_of::value_of<I37>::type T37; typedef typename fusion::result_of::value_of<I38>::type T38; typedef typename fusion::result_of::value_of<I39>::type T39; typedef typename fusion::result_of::value_of<I40>::type T40; typedef typename fusion::result_of::value_of<I41>::type T41; typedef typename fusion::result_of::value_of<I42>::type T42;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39; typedef typename fusion::result_of::next<I39>::type I40; typedef typename fusion::result_of::next<I40>::type I41; typedef typename fusion::result_of::next<I41>::type I42;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32; typedef pair_from<I33, is_assoc> D33; typedef typename D33::type T33; typedef pair_from<I34, is_assoc> D34; typedef typename D34::type T34; typedef pair_from<I35, is_assoc> D35; typedef typename D35::type T35; typedef pair_from<I36, is_assoc> D36; typedef typename D36::type T36; typedef pair_from<I37, is_assoc> D37; typedef typename D37::type T37; typedef pair_from<I38, is_assoc> D38; typedef typename D38::type T38; typedef pair_from<I39, is_assoc> D39; typedef typename D39::type T39; typedef pair_from<I40, is_assoc> D40; typedef typename D40::type T40; typedef pair_from<I41, is_assoc> D41; typedef typename D41::type T41; typedef pair_from<I42, is_assoc> D42; typedef typename D42::type T42;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32 , T33 , T34 , T35 , T36 , T37 , T38 , T39 , T40 , T41 , T42> type;
         };
         template <typename Iterator>
@@ -865,17 +865,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31); typename gen::I33 i33 = fusion::next(i32); typename gen::I34 i34 = fusion::next(i33); typename gen::I35 i35 = fusion::next(i34); typename gen::I36 i36 = fusion::next(i35); typename gen::I37 i37 = fusion::next(i36); typename gen::I38 i38 = fusion::next(i37); typename gen::I39 i39 = fusion::next(i38); typename gen::I40 i40 = fusion::next(i39); typename gen::I41 i41 = fusion::next(i40); typename gen::I42 i42 = fusion::next(i41);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32 , *i33 , *i34 , *i35 , *i36 , *i37 , *i38 , *i39 , *i40 , *i41 , *i42);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32) , gen::D33::call(i33) , gen::D34::call(i34) , gen::D35::call(i35) , gen::D36::call(i36) , gen::D37::call(i37) , gen::D38::call(i38) , gen::D39::call(i39) , gen::D40::call(i40) , gen::D41::call(i41) , gen::D42::call(i42));
         }
     };
-    template <>
-    struct as_map<44>
+    template <bool is_assoc>
+    struct as_map<44, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39; typedef typename fusion::result_of::next<I39>::type I40; typedef typename fusion::result_of::next<I40>::type I41; typedef typename fusion::result_of::next<I41>::type I42; typedef typename fusion::result_of::next<I42>::type I43; typedef typename fusion::result_of::next<I43>::type I44;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32; typedef typename fusion::result_of::value_of<I33>::type T33; typedef typename fusion::result_of::value_of<I34>::type T34; typedef typename fusion::result_of::value_of<I35>::type T35; typedef typename fusion::result_of::value_of<I36>::type T36; typedef typename fusion::result_of::value_of<I37>::type T37; typedef typename fusion::result_of::value_of<I38>::type T38; typedef typename fusion::result_of::value_of<I39>::type T39; typedef typename fusion::result_of::value_of<I40>::type T40; typedef typename fusion::result_of::value_of<I41>::type T41; typedef typename fusion::result_of::value_of<I42>::type T42; typedef typename fusion::result_of::value_of<I43>::type T43;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39; typedef typename fusion::result_of::next<I39>::type I40; typedef typename fusion::result_of::next<I40>::type I41; typedef typename fusion::result_of::next<I41>::type I42; typedef typename fusion::result_of::next<I42>::type I43;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32; typedef pair_from<I33, is_assoc> D33; typedef typename D33::type T33; typedef pair_from<I34, is_assoc> D34; typedef typename D34::type T34; typedef pair_from<I35, is_assoc> D35; typedef typename D35::type T35; typedef pair_from<I36, is_assoc> D36; typedef typename D36::type T36; typedef pair_from<I37, is_assoc> D37; typedef typename D37::type T37; typedef pair_from<I38, is_assoc> D38; typedef typename D38::type T38; typedef pair_from<I39, is_assoc> D39; typedef typename D39::type T39; typedef pair_from<I40, is_assoc> D40; typedef typename D40::type T40; typedef pair_from<I41, is_assoc> D41; typedef typename D41::type T41; typedef pair_from<I42, is_assoc> D42; typedef typename D42::type T42; typedef pair_from<I43, is_assoc> D43; typedef typename D43::type T43;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32 , T33 , T34 , T35 , T36 , T37 , T38 , T39 , T40 , T41 , T42 , T43> type;
         };
         template <typename Iterator>
@@ -885,17 +885,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31); typename gen::I33 i33 = fusion::next(i32); typename gen::I34 i34 = fusion::next(i33); typename gen::I35 i35 = fusion::next(i34); typename gen::I36 i36 = fusion::next(i35); typename gen::I37 i37 = fusion::next(i36); typename gen::I38 i38 = fusion::next(i37); typename gen::I39 i39 = fusion::next(i38); typename gen::I40 i40 = fusion::next(i39); typename gen::I41 i41 = fusion::next(i40); typename gen::I42 i42 = fusion::next(i41); typename gen::I43 i43 = fusion::next(i42);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32 , *i33 , *i34 , *i35 , *i36 , *i37 , *i38 , *i39 , *i40 , *i41 , *i42 , *i43);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32) , gen::D33::call(i33) , gen::D34::call(i34) , gen::D35::call(i35) , gen::D36::call(i36) , gen::D37::call(i37) , gen::D38::call(i38) , gen::D39::call(i39) , gen::D40::call(i40) , gen::D41::call(i41) , gen::D42::call(i42) , gen::D43::call(i43));
         }
     };
-    template <>
-    struct as_map<45>
+    template <bool is_assoc>
+    struct as_map<45, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39; typedef typename fusion::result_of::next<I39>::type I40; typedef typename fusion::result_of::next<I40>::type I41; typedef typename fusion::result_of::next<I41>::type I42; typedef typename fusion::result_of::next<I42>::type I43; typedef typename fusion::result_of::next<I43>::type I44; typedef typename fusion::result_of::next<I44>::type I45;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32; typedef typename fusion::result_of::value_of<I33>::type T33; typedef typename fusion::result_of::value_of<I34>::type T34; typedef typename fusion::result_of::value_of<I35>::type T35; typedef typename fusion::result_of::value_of<I36>::type T36; typedef typename fusion::result_of::value_of<I37>::type T37; typedef typename fusion::result_of::value_of<I38>::type T38; typedef typename fusion::result_of::value_of<I39>::type T39; typedef typename fusion::result_of::value_of<I40>::type T40; typedef typename fusion::result_of::value_of<I41>::type T41; typedef typename fusion::result_of::value_of<I42>::type T42; typedef typename fusion::result_of::value_of<I43>::type T43; typedef typename fusion::result_of::value_of<I44>::type T44;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39; typedef typename fusion::result_of::next<I39>::type I40; typedef typename fusion::result_of::next<I40>::type I41; typedef typename fusion::result_of::next<I41>::type I42; typedef typename fusion::result_of::next<I42>::type I43; typedef typename fusion::result_of::next<I43>::type I44;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32; typedef pair_from<I33, is_assoc> D33; typedef typename D33::type T33; typedef pair_from<I34, is_assoc> D34; typedef typename D34::type T34; typedef pair_from<I35, is_assoc> D35; typedef typename D35::type T35; typedef pair_from<I36, is_assoc> D36; typedef typename D36::type T36; typedef pair_from<I37, is_assoc> D37; typedef typename D37::type T37; typedef pair_from<I38, is_assoc> D38; typedef typename D38::type T38; typedef pair_from<I39, is_assoc> D39; typedef typename D39::type T39; typedef pair_from<I40, is_assoc> D40; typedef typename D40::type T40; typedef pair_from<I41, is_assoc> D41; typedef typename D41::type T41; typedef pair_from<I42, is_assoc> D42; typedef typename D42::type T42; typedef pair_from<I43, is_assoc> D43; typedef typename D43::type T43; typedef pair_from<I44, is_assoc> D44; typedef typename D44::type T44;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32 , T33 , T34 , T35 , T36 , T37 , T38 , T39 , T40 , T41 , T42 , T43 , T44> type;
         };
         template <typename Iterator>
@@ -905,17 +905,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31); typename gen::I33 i33 = fusion::next(i32); typename gen::I34 i34 = fusion::next(i33); typename gen::I35 i35 = fusion::next(i34); typename gen::I36 i36 = fusion::next(i35); typename gen::I37 i37 = fusion::next(i36); typename gen::I38 i38 = fusion::next(i37); typename gen::I39 i39 = fusion::next(i38); typename gen::I40 i40 = fusion::next(i39); typename gen::I41 i41 = fusion::next(i40); typename gen::I42 i42 = fusion::next(i41); typename gen::I43 i43 = fusion::next(i42); typename gen::I44 i44 = fusion::next(i43);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32 , *i33 , *i34 , *i35 , *i36 , *i37 , *i38 , *i39 , *i40 , *i41 , *i42 , *i43 , *i44);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32) , gen::D33::call(i33) , gen::D34::call(i34) , gen::D35::call(i35) , gen::D36::call(i36) , gen::D37::call(i37) , gen::D38::call(i38) , gen::D39::call(i39) , gen::D40::call(i40) , gen::D41::call(i41) , gen::D42::call(i42) , gen::D43::call(i43) , gen::D44::call(i44));
         }
     };
-    template <>
-    struct as_map<46>
+    template <bool is_assoc>
+    struct as_map<46, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39; typedef typename fusion::result_of::next<I39>::type I40; typedef typename fusion::result_of::next<I40>::type I41; typedef typename fusion::result_of::next<I41>::type I42; typedef typename fusion::result_of::next<I42>::type I43; typedef typename fusion::result_of::next<I43>::type I44; typedef typename fusion::result_of::next<I44>::type I45; typedef typename fusion::result_of::next<I45>::type I46;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32; typedef typename fusion::result_of::value_of<I33>::type T33; typedef typename fusion::result_of::value_of<I34>::type T34; typedef typename fusion::result_of::value_of<I35>::type T35; typedef typename fusion::result_of::value_of<I36>::type T36; typedef typename fusion::result_of::value_of<I37>::type T37; typedef typename fusion::result_of::value_of<I38>::type T38; typedef typename fusion::result_of::value_of<I39>::type T39; typedef typename fusion::result_of::value_of<I40>::type T40; typedef typename fusion::result_of::value_of<I41>::type T41; typedef typename fusion::result_of::value_of<I42>::type T42; typedef typename fusion::result_of::value_of<I43>::type T43; typedef typename fusion::result_of::value_of<I44>::type T44; typedef typename fusion::result_of::value_of<I45>::type T45;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39; typedef typename fusion::result_of::next<I39>::type I40; typedef typename fusion::result_of::next<I40>::type I41; typedef typename fusion::result_of::next<I41>::type I42; typedef typename fusion::result_of::next<I42>::type I43; typedef typename fusion::result_of::next<I43>::type I44; typedef typename fusion::result_of::next<I44>::type I45;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32; typedef pair_from<I33, is_assoc> D33; typedef typename D33::type T33; typedef pair_from<I34, is_assoc> D34; typedef typename D34::type T34; typedef pair_from<I35, is_assoc> D35; typedef typename D35::type T35; typedef pair_from<I36, is_assoc> D36; typedef typename D36::type T36; typedef pair_from<I37, is_assoc> D37; typedef typename D37::type T37; typedef pair_from<I38, is_assoc> D38; typedef typename D38::type T38; typedef pair_from<I39, is_assoc> D39; typedef typename D39::type T39; typedef pair_from<I40, is_assoc> D40; typedef typename D40::type T40; typedef pair_from<I41, is_assoc> D41; typedef typename D41::type T41; typedef pair_from<I42, is_assoc> D42; typedef typename D42::type T42; typedef pair_from<I43, is_assoc> D43; typedef typename D43::type T43; typedef pair_from<I44, is_assoc> D44; typedef typename D44::type T44; typedef pair_from<I45, is_assoc> D45; typedef typename D45::type T45;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32 , T33 , T34 , T35 , T36 , T37 , T38 , T39 , T40 , T41 , T42 , T43 , T44 , T45> type;
         };
         template <typename Iterator>
@@ -925,17 +925,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31); typename gen::I33 i33 = fusion::next(i32); typename gen::I34 i34 = fusion::next(i33); typename gen::I35 i35 = fusion::next(i34); typename gen::I36 i36 = fusion::next(i35); typename gen::I37 i37 = fusion::next(i36); typename gen::I38 i38 = fusion::next(i37); typename gen::I39 i39 = fusion::next(i38); typename gen::I40 i40 = fusion::next(i39); typename gen::I41 i41 = fusion::next(i40); typename gen::I42 i42 = fusion::next(i41); typename gen::I43 i43 = fusion::next(i42); typename gen::I44 i44 = fusion::next(i43); typename gen::I45 i45 = fusion::next(i44);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32 , *i33 , *i34 , *i35 , *i36 , *i37 , *i38 , *i39 , *i40 , *i41 , *i42 , *i43 , *i44 , *i45);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32) , gen::D33::call(i33) , gen::D34::call(i34) , gen::D35::call(i35) , gen::D36::call(i36) , gen::D37::call(i37) , gen::D38::call(i38) , gen::D39::call(i39) , gen::D40::call(i40) , gen::D41::call(i41) , gen::D42::call(i42) , gen::D43::call(i43) , gen::D44::call(i44) , gen::D45::call(i45));
         }
     };
-    template <>
-    struct as_map<47>
+    template <bool is_assoc>
+    struct as_map<47, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39; typedef typename fusion::result_of::next<I39>::type I40; typedef typename fusion::result_of::next<I40>::type I41; typedef typename fusion::result_of::next<I41>::type I42; typedef typename fusion::result_of::next<I42>::type I43; typedef typename fusion::result_of::next<I43>::type I44; typedef typename fusion::result_of::next<I44>::type I45; typedef typename fusion::result_of::next<I45>::type I46; typedef typename fusion::result_of::next<I46>::type I47;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32; typedef typename fusion::result_of::value_of<I33>::type T33; typedef typename fusion::result_of::value_of<I34>::type T34; typedef typename fusion::result_of::value_of<I35>::type T35; typedef typename fusion::result_of::value_of<I36>::type T36; typedef typename fusion::result_of::value_of<I37>::type T37; typedef typename fusion::result_of::value_of<I38>::type T38; typedef typename fusion::result_of::value_of<I39>::type T39; typedef typename fusion::result_of::value_of<I40>::type T40; typedef typename fusion::result_of::value_of<I41>::type T41; typedef typename fusion::result_of::value_of<I42>::type T42; typedef typename fusion::result_of::value_of<I43>::type T43; typedef typename fusion::result_of::value_of<I44>::type T44; typedef typename fusion::result_of::value_of<I45>::type T45; typedef typename fusion::result_of::value_of<I46>::type T46;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39; typedef typename fusion::result_of::next<I39>::type I40; typedef typename fusion::result_of::next<I40>::type I41; typedef typename fusion::result_of::next<I41>::type I42; typedef typename fusion::result_of::next<I42>::type I43; typedef typename fusion::result_of::next<I43>::type I44; typedef typename fusion::result_of::next<I44>::type I45; typedef typename fusion::result_of::next<I45>::type I46;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32; typedef pair_from<I33, is_assoc> D33; typedef typename D33::type T33; typedef pair_from<I34, is_assoc> D34; typedef typename D34::type T34; typedef pair_from<I35, is_assoc> D35; typedef typename D35::type T35; typedef pair_from<I36, is_assoc> D36; typedef typename D36::type T36; typedef pair_from<I37, is_assoc> D37; typedef typename D37::type T37; typedef pair_from<I38, is_assoc> D38; typedef typename D38::type T38; typedef pair_from<I39, is_assoc> D39; typedef typename D39::type T39; typedef pair_from<I40, is_assoc> D40; typedef typename D40::type T40; typedef pair_from<I41, is_assoc> D41; typedef typename D41::type T41; typedef pair_from<I42, is_assoc> D42; typedef typename D42::type T42; typedef pair_from<I43, is_assoc> D43; typedef typename D43::type T43; typedef pair_from<I44, is_assoc> D44; typedef typename D44::type T44; typedef pair_from<I45, is_assoc> D45; typedef typename D45::type T45; typedef pair_from<I46, is_assoc> D46; typedef typename D46::type T46;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32 , T33 , T34 , T35 , T36 , T37 , T38 , T39 , T40 , T41 , T42 , T43 , T44 , T45 , T46> type;
         };
         template <typename Iterator>
@@ -945,17 +945,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31); typename gen::I33 i33 = fusion::next(i32); typename gen::I34 i34 = fusion::next(i33); typename gen::I35 i35 = fusion::next(i34); typename gen::I36 i36 = fusion::next(i35); typename gen::I37 i37 = fusion::next(i36); typename gen::I38 i38 = fusion::next(i37); typename gen::I39 i39 = fusion::next(i38); typename gen::I40 i40 = fusion::next(i39); typename gen::I41 i41 = fusion::next(i40); typename gen::I42 i42 = fusion::next(i41); typename gen::I43 i43 = fusion::next(i42); typename gen::I44 i44 = fusion::next(i43); typename gen::I45 i45 = fusion::next(i44); typename gen::I46 i46 = fusion::next(i45);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32 , *i33 , *i34 , *i35 , *i36 , *i37 , *i38 , *i39 , *i40 , *i41 , *i42 , *i43 , *i44 , *i45 , *i46);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32) , gen::D33::call(i33) , gen::D34::call(i34) , gen::D35::call(i35) , gen::D36::call(i36) , gen::D37::call(i37) , gen::D38::call(i38) , gen::D39::call(i39) , gen::D40::call(i40) , gen::D41::call(i41) , gen::D42::call(i42) , gen::D43::call(i43) , gen::D44::call(i44) , gen::D45::call(i45) , gen::D46::call(i46));
         }
     };
-    template <>
-    struct as_map<48>
+    template <bool is_assoc>
+    struct as_map<48, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39; typedef typename fusion::result_of::next<I39>::type I40; typedef typename fusion::result_of::next<I40>::type I41; typedef typename fusion::result_of::next<I41>::type I42; typedef typename fusion::result_of::next<I42>::type I43; typedef typename fusion::result_of::next<I43>::type I44; typedef typename fusion::result_of::next<I44>::type I45; typedef typename fusion::result_of::next<I45>::type I46; typedef typename fusion::result_of::next<I46>::type I47; typedef typename fusion::result_of::next<I47>::type I48;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32; typedef typename fusion::result_of::value_of<I33>::type T33; typedef typename fusion::result_of::value_of<I34>::type T34; typedef typename fusion::result_of::value_of<I35>::type T35; typedef typename fusion::result_of::value_of<I36>::type T36; typedef typename fusion::result_of::value_of<I37>::type T37; typedef typename fusion::result_of::value_of<I38>::type T38; typedef typename fusion::result_of::value_of<I39>::type T39; typedef typename fusion::result_of::value_of<I40>::type T40; typedef typename fusion::result_of::value_of<I41>::type T41; typedef typename fusion::result_of::value_of<I42>::type T42; typedef typename fusion::result_of::value_of<I43>::type T43; typedef typename fusion::result_of::value_of<I44>::type T44; typedef typename fusion::result_of::value_of<I45>::type T45; typedef typename fusion::result_of::value_of<I46>::type T46; typedef typename fusion::result_of::value_of<I47>::type T47;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39; typedef typename fusion::result_of::next<I39>::type I40; typedef typename fusion::result_of::next<I40>::type I41; typedef typename fusion::result_of::next<I41>::type I42; typedef typename fusion::result_of::next<I42>::type I43; typedef typename fusion::result_of::next<I43>::type I44; typedef typename fusion::result_of::next<I44>::type I45; typedef typename fusion::result_of::next<I45>::type I46; typedef typename fusion::result_of::next<I46>::type I47;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32; typedef pair_from<I33, is_assoc> D33; typedef typename D33::type T33; typedef pair_from<I34, is_assoc> D34; typedef typename D34::type T34; typedef pair_from<I35, is_assoc> D35; typedef typename D35::type T35; typedef pair_from<I36, is_assoc> D36; typedef typename D36::type T36; typedef pair_from<I37, is_assoc> D37; typedef typename D37::type T37; typedef pair_from<I38, is_assoc> D38; typedef typename D38::type T38; typedef pair_from<I39, is_assoc> D39; typedef typename D39::type T39; typedef pair_from<I40, is_assoc> D40; typedef typename D40::type T40; typedef pair_from<I41, is_assoc> D41; typedef typename D41::type T41; typedef pair_from<I42, is_assoc> D42; typedef typename D42::type T42; typedef pair_from<I43, is_assoc> D43; typedef typename D43::type T43; typedef pair_from<I44, is_assoc> D44; typedef typename D44::type T44; typedef pair_from<I45, is_assoc> D45; typedef typename D45::type T45; typedef pair_from<I46, is_assoc> D46; typedef typename D46::type T46; typedef pair_from<I47, is_assoc> D47; typedef typename D47::type T47;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32 , T33 , T34 , T35 , T36 , T37 , T38 , T39 , T40 , T41 , T42 , T43 , T44 , T45 , T46 , T47> type;
         };
         template <typename Iterator>
@@ -965,17 +965,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31); typename gen::I33 i33 = fusion::next(i32); typename gen::I34 i34 = fusion::next(i33); typename gen::I35 i35 = fusion::next(i34); typename gen::I36 i36 = fusion::next(i35); typename gen::I37 i37 = fusion::next(i36); typename gen::I38 i38 = fusion::next(i37); typename gen::I39 i39 = fusion::next(i38); typename gen::I40 i40 = fusion::next(i39); typename gen::I41 i41 = fusion::next(i40); typename gen::I42 i42 = fusion::next(i41); typename gen::I43 i43 = fusion::next(i42); typename gen::I44 i44 = fusion::next(i43); typename gen::I45 i45 = fusion::next(i44); typename gen::I46 i46 = fusion::next(i45); typename gen::I47 i47 = fusion::next(i46);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32 , *i33 , *i34 , *i35 , *i36 , *i37 , *i38 , *i39 , *i40 , *i41 , *i42 , *i43 , *i44 , *i45 , *i46 , *i47);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32) , gen::D33::call(i33) , gen::D34::call(i34) , gen::D35::call(i35) , gen::D36::call(i36) , gen::D37::call(i37) , gen::D38::call(i38) , gen::D39::call(i39) , gen::D40::call(i40) , gen::D41::call(i41) , gen::D42::call(i42) , gen::D43::call(i43) , gen::D44::call(i44) , gen::D45::call(i45) , gen::D46::call(i46) , gen::D47::call(i47));
         }
     };
-    template <>
-    struct as_map<49>
+    template <bool is_assoc>
+    struct as_map<49, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39; typedef typename fusion::result_of::next<I39>::type I40; typedef typename fusion::result_of::next<I40>::type I41; typedef typename fusion::result_of::next<I41>::type I42; typedef typename fusion::result_of::next<I42>::type I43; typedef typename fusion::result_of::next<I43>::type I44; typedef typename fusion::result_of::next<I44>::type I45; typedef typename fusion::result_of::next<I45>::type I46; typedef typename fusion::result_of::next<I46>::type I47; typedef typename fusion::result_of::next<I47>::type I48; typedef typename fusion::result_of::next<I48>::type I49;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32; typedef typename fusion::result_of::value_of<I33>::type T33; typedef typename fusion::result_of::value_of<I34>::type T34; typedef typename fusion::result_of::value_of<I35>::type T35; typedef typename fusion::result_of::value_of<I36>::type T36; typedef typename fusion::result_of::value_of<I37>::type T37; typedef typename fusion::result_of::value_of<I38>::type T38; typedef typename fusion::result_of::value_of<I39>::type T39; typedef typename fusion::result_of::value_of<I40>::type T40; typedef typename fusion::result_of::value_of<I41>::type T41; typedef typename fusion::result_of::value_of<I42>::type T42; typedef typename fusion::result_of::value_of<I43>::type T43; typedef typename fusion::result_of::value_of<I44>::type T44; typedef typename fusion::result_of::value_of<I45>::type T45; typedef typename fusion::result_of::value_of<I46>::type T46; typedef typename fusion::result_of::value_of<I47>::type T47; typedef typename fusion::result_of::value_of<I48>::type T48;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39; typedef typename fusion::result_of::next<I39>::type I40; typedef typename fusion::result_of::next<I40>::type I41; typedef typename fusion::result_of::next<I41>::type I42; typedef typename fusion::result_of::next<I42>::type I43; typedef typename fusion::result_of::next<I43>::type I44; typedef typename fusion::result_of::next<I44>::type I45; typedef typename fusion::result_of::next<I45>::type I46; typedef typename fusion::result_of::next<I46>::type I47; typedef typename fusion::result_of::next<I47>::type I48;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32; typedef pair_from<I33, is_assoc> D33; typedef typename D33::type T33; typedef pair_from<I34, is_assoc> D34; typedef typename D34::type T34; typedef pair_from<I35, is_assoc> D35; typedef typename D35::type T35; typedef pair_from<I36, is_assoc> D36; typedef typename D36::type T36; typedef pair_from<I37, is_assoc> D37; typedef typename D37::type T37; typedef pair_from<I38, is_assoc> D38; typedef typename D38::type T38; typedef pair_from<I39, is_assoc> D39; typedef typename D39::type T39; typedef pair_from<I40, is_assoc> D40; typedef typename D40::type T40; typedef pair_from<I41, is_assoc> D41; typedef typename D41::type T41; typedef pair_from<I42, is_assoc> D42; typedef typename D42::type T42; typedef pair_from<I43, is_assoc> D43; typedef typename D43::type T43; typedef pair_from<I44, is_assoc> D44; typedef typename D44::type T44; typedef pair_from<I45, is_assoc> D45; typedef typename D45::type T45; typedef pair_from<I46, is_assoc> D46; typedef typename D46::type T46; typedef pair_from<I47, is_assoc> D47; typedef typename D47::type T47; typedef pair_from<I48, is_assoc> D48; typedef typename D48::type T48;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32 , T33 , T34 , T35 , T36 , T37 , T38 , T39 , T40 , T41 , T42 , T43 , T44 , T45 , T46 , T47 , T48> type;
         };
         template <typename Iterator>
@@ -985,17 +985,17 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31); typename gen::I33 i33 = fusion::next(i32); typename gen::I34 i34 = fusion::next(i33); typename gen::I35 i35 = fusion::next(i34); typename gen::I36 i36 = fusion::next(i35); typename gen::I37 i37 = fusion::next(i36); typename gen::I38 i38 = fusion::next(i37); typename gen::I39 i39 = fusion::next(i38); typename gen::I40 i40 = fusion::next(i39); typename gen::I41 i41 = fusion::next(i40); typename gen::I42 i42 = fusion::next(i41); typename gen::I43 i43 = fusion::next(i42); typename gen::I44 i44 = fusion::next(i43); typename gen::I45 i45 = fusion::next(i44); typename gen::I46 i46 = fusion::next(i45); typename gen::I47 i47 = fusion::next(i46); typename gen::I48 i48 = fusion::next(i47);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32 , *i33 , *i34 , *i35 , *i36 , *i37 , *i38 , *i39 , *i40 , *i41 , *i42 , *i43 , *i44 , *i45 , *i46 , *i47 , *i48);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32) , gen::D33::call(i33) , gen::D34::call(i34) , gen::D35::call(i35) , gen::D36::call(i36) , gen::D37::call(i37) , gen::D38::call(i38) , gen::D39::call(i39) , gen::D40::call(i40) , gen::D41::call(i41) , gen::D42::call(i42) , gen::D43::call(i43) , gen::D44::call(i44) , gen::D45::call(i45) , gen::D46::call(i46) , gen::D47::call(i47) , gen::D48::call(i48));
         }
     };
-    template <>
-    struct as_map<50>
+    template <bool is_assoc>
+    struct as_map<50, is_assoc>
     {
         template <typename I0>
         struct apply
         {
-            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39; typedef typename fusion::result_of::next<I39>::type I40; typedef typename fusion::result_of::next<I40>::type I41; typedef typename fusion::result_of::next<I41>::type I42; typedef typename fusion::result_of::next<I42>::type I43; typedef typename fusion::result_of::next<I43>::type I44; typedef typename fusion::result_of::next<I44>::type I45; typedef typename fusion::result_of::next<I45>::type I46; typedef typename fusion::result_of::next<I46>::type I47; typedef typename fusion::result_of::next<I47>::type I48; typedef typename fusion::result_of::next<I48>::type I49; typedef typename fusion::result_of::next<I49>::type I50;
-            typedef typename fusion::result_of::value_of<I0>::type T0; typedef typename fusion::result_of::value_of<I1>::type T1; typedef typename fusion::result_of::value_of<I2>::type T2; typedef typename fusion::result_of::value_of<I3>::type T3; typedef typename fusion::result_of::value_of<I4>::type T4; typedef typename fusion::result_of::value_of<I5>::type T5; typedef typename fusion::result_of::value_of<I6>::type T6; typedef typename fusion::result_of::value_of<I7>::type T7; typedef typename fusion::result_of::value_of<I8>::type T8; typedef typename fusion::result_of::value_of<I9>::type T9; typedef typename fusion::result_of::value_of<I10>::type T10; typedef typename fusion::result_of::value_of<I11>::type T11; typedef typename fusion::result_of::value_of<I12>::type T12; typedef typename fusion::result_of::value_of<I13>::type T13; typedef typename fusion::result_of::value_of<I14>::type T14; typedef typename fusion::result_of::value_of<I15>::type T15; typedef typename fusion::result_of::value_of<I16>::type T16; typedef typename fusion::result_of::value_of<I17>::type T17; typedef typename fusion::result_of::value_of<I18>::type T18; typedef typename fusion::result_of::value_of<I19>::type T19; typedef typename fusion::result_of::value_of<I20>::type T20; typedef typename fusion::result_of::value_of<I21>::type T21; typedef typename fusion::result_of::value_of<I22>::type T22; typedef typename fusion::result_of::value_of<I23>::type T23; typedef typename fusion::result_of::value_of<I24>::type T24; typedef typename fusion::result_of::value_of<I25>::type T25; typedef typename fusion::result_of::value_of<I26>::type T26; typedef typename fusion::result_of::value_of<I27>::type T27; typedef typename fusion::result_of::value_of<I28>::type T28; typedef typename fusion::result_of::value_of<I29>::type T29; typedef typename fusion::result_of::value_of<I30>::type T30; typedef typename fusion::result_of::value_of<I31>::type T31; typedef typename fusion::result_of::value_of<I32>::type T32; typedef typename fusion::result_of::value_of<I33>::type T33; typedef typename fusion::result_of::value_of<I34>::type T34; typedef typename fusion::result_of::value_of<I35>::type T35; typedef typename fusion::result_of::value_of<I36>::type T36; typedef typename fusion::result_of::value_of<I37>::type T37; typedef typename fusion::result_of::value_of<I38>::type T38; typedef typename fusion::result_of::value_of<I39>::type T39; typedef typename fusion::result_of::value_of<I40>::type T40; typedef typename fusion::result_of::value_of<I41>::type T41; typedef typename fusion::result_of::value_of<I42>::type T42; typedef typename fusion::result_of::value_of<I43>::type T43; typedef typename fusion::result_of::value_of<I44>::type T44; typedef typename fusion::result_of::value_of<I45>::type T45; typedef typename fusion::result_of::value_of<I46>::type T46; typedef typename fusion::result_of::value_of<I47>::type T47; typedef typename fusion::result_of::value_of<I48>::type T48; typedef typename fusion::result_of::value_of<I49>::type T49;
+            typedef typename fusion::result_of::next<I0>::type I1; typedef typename fusion::result_of::next<I1>::type I2; typedef typename fusion::result_of::next<I2>::type I3; typedef typename fusion::result_of::next<I3>::type I4; typedef typename fusion::result_of::next<I4>::type I5; typedef typename fusion::result_of::next<I5>::type I6; typedef typename fusion::result_of::next<I6>::type I7; typedef typename fusion::result_of::next<I7>::type I8; typedef typename fusion::result_of::next<I8>::type I9; typedef typename fusion::result_of::next<I9>::type I10; typedef typename fusion::result_of::next<I10>::type I11; typedef typename fusion::result_of::next<I11>::type I12; typedef typename fusion::result_of::next<I12>::type I13; typedef typename fusion::result_of::next<I13>::type I14; typedef typename fusion::result_of::next<I14>::type I15; typedef typename fusion::result_of::next<I15>::type I16; typedef typename fusion::result_of::next<I16>::type I17; typedef typename fusion::result_of::next<I17>::type I18; typedef typename fusion::result_of::next<I18>::type I19; typedef typename fusion::result_of::next<I19>::type I20; typedef typename fusion::result_of::next<I20>::type I21; typedef typename fusion::result_of::next<I21>::type I22; typedef typename fusion::result_of::next<I22>::type I23; typedef typename fusion::result_of::next<I23>::type I24; typedef typename fusion::result_of::next<I24>::type I25; typedef typename fusion::result_of::next<I25>::type I26; typedef typename fusion::result_of::next<I26>::type I27; typedef typename fusion::result_of::next<I27>::type I28; typedef typename fusion::result_of::next<I28>::type I29; typedef typename fusion::result_of::next<I29>::type I30; typedef typename fusion::result_of::next<I30>::type I31; typedef typename fusion::result_of::next<I31>::type I32; typedef typename fusion::result_of::next<I32>::type I33; typedef typename fusion::result_of::next<I33>::type I34; typedef typename fusion::result_of::next<I34>::type I35; typedef typename fusion::result_of::next<I35>::type I36; typedef typename fusion::result_of::next<I36>::type I37; typedef typename fusion::result_of::next<I37>::type I38; typedef typename fusion::result_of::next<I38>::type I39; typedef typename fusion::result_of::next<I39>::type I40; typedef typename fusion::result_of::next<I40>::type I41; typedef typename fusion::result_of::next<I41>::type I42; typedef typename fusion::result_of::next<I42>::type I43; typedef typename fusion::result_of::next<I43>::type I44; typedef typename fusion::result_of::next<I44>::type I45; typedef typename fusion::result_of::next<I45>::type I46; typedef typename fusion::result_of::next<I46>::type I47; typedef typename fusion::result_of::next<I47>::type I48; typedef typename fusion::result_of::next<I48>::type I49;
+            typedef pair_from<I0, is_assoc> D0; typedef typename D0::type T0; typedef pair_from<I1, is_assoc> D1; typedef typename D1::type T1; typedef pair_from<I2, is_assoc> D2; typedef typename D2::type T2; typedef pair_from<I3, is_assoc> D3; typedef typename D3::type T3; typedef pair_from<I4, is_assoc> D4; typedef typename D4::type T4; typedef pair_from<I5, is_assoc> D5; typedef typename D5::type T5; typedef pair_from<I6, is_assoc> D6; typedef typename D6::type T6; typedef pair_from<I7, is_assoc> D7; typedef typename D7::type T7; typedef pair_from<I8, is_assoc> D8; typedef typename D8::type T8; typedef pair_from<I9, is_assoc> D9; typedef typename D9::type T9; typedef pair_from<I10, is_assoc> D10; typedef typename D10::type T10; typedef pair_from<I11, is_assoc> D11; typedef typename D11::type T11; typedef pair_from<I12, is_assoc> D12; typedef typename D12::type T12; typedef pair_from<I13, is_assoc> D13; typedef typename D13::type T13; typedef pair_from<I14, is_assoc> D14; typedef typename D14::type T14; typedef pair_from<I15, is_assoc> D15; typedef typename D15::type T15; typedef pair_from<I16, is_assoc> D16; typedef typename D16::type T16; typedef pair_from<I17, is_assoc> D17; typedef typename D17::type T17; typedef pair_from<I18, is_assoc> D18; typedef typename D18::type T18; typedef pair_from<I19, is_assoc> D19; typedef typename D19::type T19; typedef pair_from<I20, is_assoc> D20; typedef typename D20::type T20; typedef pair_from<I21, is_assoc> D21; typedef typename D21::type T21; typedef pair_from<I22, is_assoc> D22; typedef typename D22::type T22; typedef pair_from<I23, is_assoc> D23; typedef typename D23::type T23; typedef pair_from<I24, is_assoc> D24; typedef typename D24::type T24; typedef pair_from<I25, is_assoc> D25; typedef typename D25::type T25; typedef pair_from<I26, is_assoc> D26; typedef typename D26::type T26; typedef pair_from<I27, is_assoc> D27; typedef typename D27::type T27; typedef pair_from<I28, is_assoc> D28; typedef typename D28::type T28; typedef pair_from<I29, is_assoc> D29; typedef typename D29::type T29; typedef pair_from<I30, is_assoc> D30; typedef typename D30::type T30; typedef pair_from<I31, is_assoc> D31; typedef typename D31::type T31; typedef pair_from<I32, is_assoc> D32; typedef typename D32::type T32; typedef pair_from<I33, is_assoc> D33; typedef typename D33::type T33; typedef pair_from<I34, is_assoc> D34; typedef typename D34::type T34; typedef pair_from<I35, is_assoc> D35; typedef typename D35::type T35; typedef pair_from<I36, is_assoc> D36; typedef typename D36::type T36; typedef pair_from<I37, is_assoc> D37; typedef typename D37::type T37; typedef pair_from<I38, is_assoc> D38; typedef typename D38::type T38; typedef pair_from<I39, is_assoc> D39; typedef typename D39::type T39; typedef pair_from<I40, is_assoc> D40; typedef typename D40::type T40; typedef pair_from<I41, is_assoc> D41; typedef typename D41::type T41; typedef pair_from<I42, is_assoc> D42; typedef typename D42::type T42; typedef pair_from<I43, is_assoc> D43; typedef typename D43::type T43; typedef pair_from<I44, is_assoc> D44; typedef typename D44::type T44; typedef pair_from<I45, is_assoc> D45; typedef typename D45::type T45; typedef pair_from<I46, is_assoc> D46; typedef typename D46::type T46; typedef pair_from<I47, is_assoc> D47; typedef typename D47::type T47; typedef pair_from<I48, is_assoc> D48; typedef typename D48::type T48; typedef pair_from<I49, is_assoc> D49; typedef typename D49::type T49;
             typedef map<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32 , T33 , T34 , T35 , T36 , T37 , T38 , T39 , T40 , T41 , T42 , T43 , T44 , T45 , T46 , T47 , T48 , T49> type;
         };
         template <typename Iterator>
@@ -1005,7 +1005,7 @@ namespace boost { namespace fusion { namespace detail
             typedef apply<Iterator> gen;
             typedef typename gen::type result;
             typename gen::I1 i1 = fusion::next(i0); typename gen::I2 i2 = fusion::next(i1); typename gen::I3 i3 = fusion::next(i2); typename gen::I4 i4 = fusion::next(i3); typename gen::I5 i5 = fusion::next(i4); typename gen::I6 i6 = fusion::next(i5); typename gen::I7 i7 = fusion::next(i6); typename gen::I8 i8 = fusion::next(i7); typename gen::I9 i9 = fusion::next(i8); typename gen::I10 i10 = fusion::next(i9); typename gen::I11 i11 = fusion::next(i10); typename gen::I12 i12 = fusion::next(i11); typename gen::I13 i13 = fusion::next(i12); typename gen::I14 i14 = fusion::next(i13); typename gen::I15 i15 = fusion::next(i14); typename gen::I16 i16 = fusion::next(i15); typename gen::I17 i17 = fusion::next(i16); typename gen::I18 i18 = fusion::next(i17); typename gen::I19 i19 = fusion::next(i18); typename gen::I20 i20 = fusion::next(i19); typename gen::I21 i21 = fusion::next(i20); typename gen::I22 i22 = fusion::next(i21); typename gen::I23 i23 = fusion::next(i22); typename gen::I24 i24 = fusion::next(i23); typename gen::I25 i25 = fusion::next(i24); typename gen::I26 i26 = fusion::next(i25); typename gen::I27 i27 = fusion::next(i26); typename gen::I28 i28 = fusion::next(i27); typename gen::I29 i29 = fusion::next(i28); typename gen::I30 i30 = fusion::next(i29); typename gen::I31 i31 = fusion::next(i30); typename gen::I32 i32 = fusion::next(i31); typename gen::I33 i33 = fusion::next(i32); typename gen::I34 i34 = fusion::next(i33); typename gen::I35 i35 = fusion::next(i34); typename gen::I36 i36 = fusion::next(i35); typename gen::I37 i37 = fusion::next(i36); typename gen::I38 i38 = fusion::next(i37); typename gen::I39 i39 = fusion::next(i38); typename gen::I40 i40 = fusion::next(i39); typename gen::I41 i41 = fusion::next(i40); typename gen::I42 i42 = fusion::next(i41); typename gen::I43 i43 = fusion::next(i42); typename gen::I44 i44 = fusion::next(i43); typename gen::I45 i45 = fusion::next(i44); typename gen::I46 i46 = fusion::next(i45); typename gen::I47 i47 = fusion::next(i46); typename gen::I48 i48 = fusion::next(i47); typename gen::I49 i49 = fusion::next(i48);
-            return result(*i0 , *i1 , *i2 , *i3 , *i4 , *i5 , *i6 , *i7 , *i8 , *i9 , *i10 , *i11 , *i12 , *i13 , *i14 , *i15 , *i16 , *i17 , *i18 , *i19 , *i20 , *i21 , *i22 , *i23 , *i24 , *i25 , *i26 , *i27 , *i28 , *i29 , *i30 , *i31 , *i32 , *i33 , *i34 , *i35 , *i36 , *i37 , *i38 , *i39 , *i40 , *i41 , *i42 , *i43 , *i44 , *i45 , *i46 , *i47 , *i48 , *i49);
+            return result(gen::D0::call(i0) , gen::D1::call(i1) , gen::D2::call(i2) , gen::D3::call(i3) , gen::D4::call(i4) , gen::D5::call(i5) , gen::D6::call(i6) , gen::D7::call(i7) , gen::D8::call(i8) , gen::D9::call(i9) , gen::D10::call(i10) , gen::D11::call(i11) , gen::D12::call(i12) , gen::D13::call(i13) , gen::D14::call(i14) , gen::D15::call(i15) , gen::D16::call(i16) , gen::D17::call(i17) , gen::D18::call(i18) , gen::D19::call(i19) , gen::D20::call(i20) , gen::D21::call(i21) , gen::D22::call(i22) , gen::D23::call(i23) , gen::D24::call(i24) , gen::D25::call(i25) , gen::D26::call(i26) , gen::D27::call(i27) , gen::D28::call(i28) , gen::D29::call(i29) , gen::D30::call(i30) , gen::D31::call(i31) , gen::D32::call(i32) , gen::D33::call(i33) , gen::D34::call(i34) , gen::D35::call(i35) , gen::D36::call(i36) , gen::D37::call(i37) , gen::D38::call(i38) , gen::D39::call(i39) , gen::D40::call(i40) , gen::D41::call(i41) , gen::D42::call(i42) , gen::D43::call(i43) , gen::D44::call(i44) , gen::D45::call(i45) , gen::D46::call(i46) , gen::D47::call(i47) , gen::D48::call(i48) , gen::D49::call(i49));
         }
     };
 }}}