Quickbook: Merge from trunk to quickbook-dev.

[SVN r76255]

include/boost/fusion/container/list/cons.hpp

@@ -88,7 +88,7 @@ namespace boost { namespace fusion
         template <typename Sequence>
         cons(
             Sequence const& seq
-          , typename disable_if<
+          , typename boost::disable_if<
                 mpl::or_<
                     is_convertible<Sequence, cons> // use copy ctor instead
                   , is_convertible<Sequence, Car>  // use copy to car instead
@@ -119,7 +119,7 @@ namespace boost { namespace fusion
         }
 
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, Car>, cons&>::type
+        typename boost::disable_if<is_convertible<Sequence, Car>, cons&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type Iterator;

include/boost/fusion/container/vector/detail/preprocessed/vector10.hpp

@@ -61,7 +61,7 @@ namespace boost { namespace fusion
         template <typename Sequence>
         vector1(
             Sequence const& seq
-          , typename disable_if<is_convertible<Sequence, T0> >::type* = 0
+          , typename boost::disable_if<is_convertible<Sequence, T0> >::type* = 0
             )
             : base_type(base_type::init_from_sequence(seq)) {}
         template <typename U0>
@@ -72,7 +72,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -157,7 +157,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -242,7 +242,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -327,7 +327,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -412,7 +412,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -497,7 +497,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -582,7 +582,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -667,7 +667,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -752,7 +752,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -837,7 +837,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;

include/boost/fusion/container/vector/detail/preprocessed/vector20.hpp

@@ -73,7 +73,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -158,7 +158,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -243,7 +243,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -328,7 +328,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -413,7 +413,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -498,7 +498,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -583,7 +583,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -668,7 +668,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -753,7 +753,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -838,7 +838,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;

include/boost/fusion/container/vector/detail/preprocessed/vector30.hpp

@@ -73,7 +73,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -158,7 +158,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -243,7 +243,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -328,7 +328,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -413,7 +413,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -498,7 +498,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -583,7 +583,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -668,7 +668,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -753,7 +753,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -838,7 +838,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;

include/boost/fusion/container/vector/detail/preprocessed/vector40.hpp

@@ -73,7 +73,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -158,7 +158,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -243,7 +243,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -328,7 +328,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -413,7 +413,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -498,7 +498,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -583,7 +583,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -668,7 +668,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -753,7 +753,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -838,7 +838,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;

include/boost/fusion/container/vector/detail/preprocessed/vector50.hpp

@@ -73,7 +73,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -158,7 +158,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -243,7 +243,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -328,7 +328,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -413,7 +413,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -498,7 +498,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -583,7 +583,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -668,7 +668,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -753,7 +753,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;
@@ -838,7 +838,7 @@ namespace boost { namespace fusion
             return *this;
         }
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;

include/boost/fusion/container/vector/detail/vector_n.hpp

@@ -104,7 +104,7 @@
         BOOST_PP_CAT(vector, N)(
             Sequence const& seq
 #if (N == 1)
-          , typename disable_if<is_convertible<Sequence, T0> >::type* /*dummy*/ = 0
+          , typename boost::disable_if<is_convertible<Sequence, T0> >::type* /*dummy*/ = 0
 #endif
             )
             : base_type(base_type::init_from_sequence(seq)) {}
@@ -118,7 +118,7 @@
         }
 
         template <typename Sequence>
-        typename disable_if<is_convertible<Sequence, T0>, this_type&>::type
+        typename boost::disable_if<is_convertible<Sequence, T0>, this_type&>::type
         operator=(Sequence const& seq)
         {
             typedef typename result_of::begin<Sequence const>::type I0;

include/boost/fusion/iterator/equal_to.hpp

@@ -74,7 +74,7 @@ namespace boost { namespace fusion
     {
         template <typename Iter1, typename Iter2>
         inline typename
-        enable_if<
+        boost::enable_if<
             mpl::and_<is_fusion_iterator<Iter1>, is_fusion_iterator<Iter2> >
             , bool
             >::type
@@ -85,7 +85,7 @@ namespace boost { namespace fusion
 
         template <typename Iter1, typename Iter2>
         inline typename
-        enable_if<
+        boost::enable_if<
             mpl::and_<is_fusion_iterator<Iter1>, is_fusion_iterator<Iter2> >
             , bool
             >::type

include/boost/fusion/sequence/comparison/equal_to.hpp

@@ -37,7 +37,7 @@ namespace boost { namespace fusion
     {
         template <typename Seq1, typename Seq2>
         inline typename
-            enable_if<
+            boost::enable_if<
                 traits::enable_equality<Seq1, Seq2>
               , bool
             >::type

include/boost/fusion/sequence/comparison/greater.hpp

@@ -37,7 +37,7 @@ namespace boost { namespace fusion
     {
         template <typename Seq1, typename Seq2>
         inline typename
-            enable_if<
+            boost::enable_if<
                 traits::enable_comparison<Seq1, Seq2>
               , bool
             >::type

include/boost/fusion/sequence/comparison/greater_equal.hpp

@@ -37,7 +37,7 @@ namespace boost { namespace fusion
     {
         template <typename Seq1, typename Seq2>
         inline typename
-            enable_if<
+            boost::enable_if<
                 traits::enable_comparison<Seq1, Seq2>
               , bool
             >::type

include/boost/fusion/sequence/comparison/less.hpp

@@ -28,7 +28,7 @@ namespace boost { namespace fusion
     {
         template <typename Seq1, typename Seq2>
         inline typename
-            enable_if<
+            boost::enable_if<
                 traits::enable_comparison<Seq1, Seq2>
               , bool
             >::type

include/boost/fusion/sequence/comparison/less_equal.hpp

@@ -65,7 +65,7 @@ namespace boost { namespace fusion
 
         template <typename Seq1, typename Seq2>
         inline typename
-            enable_if<
+            boost::enable_if<
                 traits::enable_comparison<Seq1, Seq2>
               , bool
             >::type

include/boost/fusion/sequence/comparison/not_equal_to.hpp

@@ -40,7 +40,7 @@ namespace boost { namespace fusion
     {
         template <typename Seq1, typename Seq2>
         inline typename
-            enable_if<
+            boost::enable_if<
                 traits::enable_equality<Seq1, Seq2>
               , bool
             >::type

include/boost/fusion/sequence/io/in.hpp

@@ -27,7 +27,7 @@ namespace boost { namespace fusion
     {
         template <typename Sequence>
         inline typename
-            enable_if<
+            boost::enable_if<
                fusion::traits::is_sequence<Sequence>
               , std::istream&
             >::type

include/boost/fusion/sequence/io/out.hpp

@@ -29,7 +29,7 @@ namespace boost { namespace fusion
     {
         template <typename Sequence>
         inline typename
-            enable_if<
+            boost::enable_if<
                fusion::traits::is_sequence<Sequence>
               , std::ostream&
             >::type

include/boost/fusion/view/iterator_range/detail/segmented_iterator_range.hpp

@@ -39,11 +39,18 @@ namespace boost { namespace fusion
     {
         template <typename Sequence, typename T>
         struct push_back;
+
+        template <typename Sequence, typename T>
+        struct push_front;
     }
 
     template <typename Sequence, typename T>
     typename result_of::push_back<Sequence const, T>::type
     push_back(Sequence const& seq, T const& x);
+
+    template <typename Sequence, typename T>
+    typename result_of::push_front<Sequence const, T>::type
+    push_front(Sequence const& seq, T const& x);
 }}
 
 namespace boost { namespace fusion { namespace detail