diff --git a/include/boost/fusion/container/deque/detail/cpp03/preprocessed/deque10.hpp b/include/boost/fusion/container/deque/detail/cpp03/preprocessed/deque10.hpp
index 95cd8c1c..082c9a79 100644
--- a/include/boost/fusion/container/deque/detail/cpp03/preprocessed/deque10.hpp
+++ b/include/boost/fusion/container/deque/detail/cpp03/preprocessed/deque10.hpp
@@ -202,8 +202,8 @@ deque(T_0 && t0 , T_1 && t1 , T_2 && t2 , T_3 && t3 , T_4 && t4 , T_5 && t5 , T_
         template<typename Sequence>
         BOOST_FUSION_GPU_ENABLED
         deque(Sequence const& seq
-            , typename disable_if<is_convertible<Sequence, T0> >::type* = 0
-            , typename enable_if<traits::is_sequence<Sequence> >::type* = 0)
+            , typename disable_if<is_convertible<Sequence, T0>, void_>::type = void_()
+            , typename enable_if<traits::is_sequence<Sequence>, void_>::type = void_())
             : base(base::from_iterator(fusion::begin(seq)))
             {}
         template <typename U0 , typename U1 , typename U2 , typename U3 , typename U4 , typename U5 , typename U6 , typename U7 , typename U8 , typename U9>
@@ -226,7 +226,7 @@ deque(T_0 && t0 , T_1 && t1 , T_2 && t2 , T_3 && t3 , T_4 && t4 , T_5 && t5 , T_
         template <typename T0_>
         BOOST_FUSION_GPU_ENABLED
         explicit deque(T0_&& t0
-          , typename enable_if<is_convertible<T0_, T0> >::type* = 0
+          , typename enable_if<is_convertible<T0_, T0>, void_>::type = void_()
          )
             : base(std::forward<T0_>( t0), detail::nil_keyed_element())
             {}
@@ -239,7 +239,8 @@ deque(T_0 && t0 , T_1 && t1 , T_2 && t2 , T_3 && t3 , T_4 && t4 , T_5 && t5 , T_
         deque(deque<U0 , U1 , U2 , U3 , U4 , U5 , U6 , U7 , U8 , U9>&& seq
             , typename disable_if<
                   is_convertible<deque<U0 , U1 , U2 , U3 , U4 , U5 , U6 , U7 , U8 , U9>, T0>
-              >::type* = 0)
+                , void_
+              >::type = void_())
             : base(std::forward<deque<U0 , U1 , U2 , U3 , U4 , U5 , U6 , U7 , U8 , U9>>(seq))
             {}
         template <typename T>
@@ -267,7 +268,7 @@ deque(T_0 && t0 , T_1 && t1 , T_2 && t2 , T_3 && t3 , T_4 && t4 , T_5 && t5 , T_
             typename enable_if<
                 mpl::and_<
                     traits::is_sequence<Sequence>
-                  , result_of::empty<Sequence> > >::type* = 0) BOOST_NOEXCEPT
+                  , result_of::empty<Sequence> >, void_>::type = void_()) BOOST_NOEXCEPT
         {}
         BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
         deque() BOOST_NOEXCEPT {}
diff --git a/include/boost/fusion/container/deque/detail/cpp03/preprocessed/deque20.hpp b/include/boost/fusion/container/deque/detail/cpp03/preprocessed/deque20.hpp
index ad069451..64a516d1 100644
--- a/include/boost/fusion/container/deque/detail/cpp03/preprocessed/deque20.hpp
+++ b/include/boost/fusion/container/deque/detail/cpp03/preprocessed/deque20.hpp
@@ -382,8 +382,8 @@ deque(T_0 && t0 , T_1 && t1 , T_2 && t2 , T_3 && t3 , T_4 && t4 , T_5 && t5 , T_
         template<typename Sequence>
         BOOST_FUSION_GPU_ENABLED
         deque(Sequence const& seq
-            , typename disable_if<is_convertible<Sequence, T0> >::type* = 0
-            , typename enable_if<traits::is_sequence<Sequence> >::type* = 0)
+            , typename disable_if<is_convertible<Sequence, T0>, void_>::type = void_()
+            , typename enable_if<traits::is_sequence<Sequence>, void_>::type = void_())
             : base(base::from_iterator(fusion::begin(seq)))
             {}
         template <typename U0 , typename U1 , typename U2 , typename U3 , typename U4 , typename U5 , typename U6 , typename U7 , typename U8 , typename U9 , typename U10 , typename U11 , typename U12 , typename U13 , typename U14 , typename U15 , typename U16 , typename U17 , typename U18 , typename U19>
@@ -406,7 +406,7 @@ deque(T_0 && t0 , T_1 && t1 , T_2 && t2 , T_3 && t3 , T_4 && t4 , T_5 && t5 , T_
         template <typename T0_>
         BOOST_FUSION_GPU_ENABLED
         explicit deque(T0_&& t0
-          , typename enable_if<is_convertible<T0_, T0> >::type* = 0
+          , typename enable_if<is_convertible<T0_, T0>, void_>::type = void_()
          )
             : base(std::forward<T0_>( t0), detail::nil_keyed_element())
             {}
@@ -419,7 +419,8 @@ deque(T_0 && t0 , T_1 && t1 , T_2 && t2 , T_3 && t3 , T_4 && t4 , T_5 && t5 , T_
         deque(deque<U0 , U1 , U2 , U3 , U4 , U5 , U6 , U7 , U8 , U9 , U10 , U11 , U12 , U13 , U14 , U15 , U16 , U17 , U18 , U19>&& seq
             , typename disable_if<
                   is_convertible<deque<U0 , U1 , U2 , U3 , U4 , U5 , U6 , U7 , U8 , U9 , U10 , U11 , U12 , U13 , U14 , U15 , U16 , U17 , U18 , U19>, T0>
-              >::type* = 0)
+                , void_
+              >::type = void_())
             : base(std::forward<deque<U0 , U1 , U2 , U3 , U4 , U5 , U6 , U7 , U8 , U9 , U10 , U11 , U12 , U13 , U14 , U15 , U16 , U17 , U18 , U19>>(seq))
             {}
         template <typename T>
@@ -447,7 +448,7 @@ deque(T_0 && t0 , T_1 && t1 , T_2 && t2 , T_3 && t3 , T_4 && t4 , T_5 && t5 , T_
             typename enable_if<
                 mpl::and_<
                     traits::is_sequence<Sequence>
-                  , result_of::empty<Sequence> > >::type* = 0) BOOST_NOEXCEPT
+                  , result_of::empty<Sequence> >, void_>::type = void_()) BOOST_NOEXCEPT
         {}
         BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
         deque() BOOST_NOEXCEPT {}
diff --git a/include/boost/fusion/container/deque/detail/cpp03/preprocessed/deque30.hpp b/include/boost/fusion/container/deque/detail/cpp03/preprocessed/deque30.hpp
index 44a5b2b1..05cae20d 100644
--- a/include/boost/fusion/container/deque/detail/cpp03/preprocessed/deque30.hpp
+++ b/include/boost/fusion/container/deque/detail/cpp03/preprocessed/deque30.hpp
@@ -562,8 +562,8 @@ deque(T_0 && t0 , T_1 && t1 , T_2 && t2 , T_3 && t3 , T_4 && t4 , T_5 && t5 , T_
         template<typename Sequence>
         BOOST_FUSION_GPU_ENABLED
         deque(Sequence const& seq
-            , typename disable_if<is_convertible<Sequence, T0> >::type* = 0
-            , typename enable_if<traits::is_sequence<Sequence> >::type* = 0)
+            , typename disable_if<is_convertible<Sequence, T0>, void_>::type = void_()
+            , typename enable_if<traits::is_sequence<Sequence>, void_>::type = void_())
             : base(base::from_iterator(fusion::begin(seq)))
             {}
         template <typename U0 , typename U1 , typename U2 , typename U3 , typename U4 , typename U5 , typename U6 , typename U7 , typename U8 , typename U9 , typename U10 , typename U11 , typename U12 , typename U13 , typename U14 , typename U15 , typename U16 , typename U17 , typename U18 , typename U19 , typename U20 , typename U21 , typename U22 , typename U23 , typename U24 , typename U25 , typename U26 , typename U27 , typename U28 , typename U29>
@@ -586,7 +586,7 @@ deque(T_0 && t0 , T_1 && t1 , T_2 && t2 , T_3 && t3 , T_4 && t4 , T_5 && t5 , T_
         template <typename T0_>
         BOOST_FUSION_GPU_ENABLED
         explicit deque(T0_&& t0
-          , typename enable_if<is_convertible<T0_, T0> >::type* = 0
+          , typename enable_if<is_convertible<T0_, T0>, void_>::type = void_()
          )
             : base(std::forward<T0_>( t0), detail::nil_keyed_element())
             {}
@@ -599,7 +599,8 @@ deque(T_0 && t0 , T_1 && t1 , T_2 && t2 , T_3 && t3 , T_4 && t4 , T_5 && t5 , T_
         deque(deque<U0 , U1 , U2 , U3 , U4 , U5 , U6 , U7 , U8 , U9 , U10 , U11 , U12 , U13 , U14 , U15 , U16 , U17 , U18 , U19 , U20 , U21 , U22 , U23 , U24 , U25 , U26 , U27 , U28 , U29>&& seq
             , typename disable_if<
                   is_convertible<deque<U0 , U1 , U2 , U3 , U4 , U5 , U6 , U7 , U8 , U9 , U10 , U11 , U12 , U13 , U14 , U15 , U16 , U17 , U18 , U19 , U20 , U21 , U22 , U23 , U24 , U25 , U26 , U27 , U28 , U29>, T0>
-              >::type* = 0)
+                , void_
+              >::type = void_())
             : base(std::forward<deque<U0 , U1 , U2 , U3 , U4 , U5 , U6 , U7 , U8 , U9 , U10 , U11 , U12 , U13 , U14 , U15 , U16 , U17 , U18 , U19 , U20 , U21 , U22 , U23 , U24 , U25 , U26 , U27 , U28 , U29>>(seq))
             {}
         template <typename T>
@@ -627,7 +628,7 @@ deque(T_0 && t0 , T_1 && t1 , T_2 && t2 , T_3 && t3 , T_4 && t4 , T_5 && t5 , T_
             typename enable_if<
                 mpl::and_<
                     traits::is_sequence<Sequence>
-                  , result_of::empty<Sequence> > >::type* = 0) BOOST_NOEXCEPT
+                  , result_of::empty<Sequence> >, void_>::type = void_()) BOOST_NOEXCEPT
         {}
         BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
         deque() BOOST_NOEXCEPT {}
diff --git a/include/boost/fusion/container/deque/detail/cpp03/preprocessed/deque40.hpp b/include/boost/fusion/container/deque/detail/cpp03/preprocessed/deque40.hpp
index e642288e..8cf0f833 100644
--- a/include/boost/fusion/container/deque/detail/cpp03/preprocessed/deque40.hpp
+++ b/include/boost/fusion/container/deque/detail/cpp03/preprocessed/deque40.hpp
@@ -742,8 +742,8 @@ deque(T_0 && t0 , T_1 && t1 , T_2 && t2 , T_3 && t3 , T_4 && t4 , T_5 && t5 , T_
         template<typename Sequence>
         BOOST_FUSION_GPU_ENABLED
         deque(Sequence const& seq
-            , typename disable_if<is_convertible<Sequence, T0> >::type* = 0
-            , typename enable_if<traits::is_sequence<Sequence> >::type* = 0)
+            , typename disable_if<is_convertible<Sequence, T0>, void_>::type = void_()
+            , typename enable_if<traits::is_sequence<Sequence>, void_>::type = void_())
             : base(base::from_iterator(fusion::begin(seq)))
             {}
         template <typename U0 , typename U1 , typename U2 , typename U3 , typename U4 , typename U5 , typename U6 , typename U7 , typename U8 , typename U9 , typename U10 , typename U11 , typename U12 , typename U13 , typename U14 , typename U15 , typename U16 , typename U17 , typename U18 , typename U19 , typename U20 , typename U21 , typename U22 , typename U23 , typename U24 , typename U25 , typename U26 , typename U27 , typename U28 , typename U29 , typename U30 , typename U31 , typename U32 , typename U33 , typename U34 , typename U35 , typename U36 , typename U37 , typename U38 , typename U39>
@@ -766,7 +766,7 @@ deque(T_0 && t0 , T_1 && t1 , T_2 && t2 , T_3 && t3 , T_4 && t4 , T_5 && t5 , T_
         template <typename T0_>
         BOOST_FUSION_GPU_ENABLED
         explicit deque(T0_&& t0
-          , typename enable_if<is_convertible<T0_, T0> >::type* = 0
+          , typename enable_if<is_convertible<T0_, T0>, void_>::type = void_()
          )
             : base(std::forward<T0_>( t0), detail::nil_keyed_element())
             {}
@@ -779,7 +779,8 @@ deque(T_0 && t0 , T_1 && t1 , T_2 && t2 , T_3 && t3 , T_4 && t4 , T_5 && t5 , T_
         deque(deque<U0 , U1 , U2 , U3 , U4 , U5 , U6 , U7 , U8 , U9 , U10 , U11 , U12 , U13 , U14 , U15 , U16 , U17 , U18 , U19 , U20 , U21 , U22 , U23 , U24 , U25 , U26 , U27 , U28 , U29 , U30 , U31 , U32 , U33 , U34 , U35 , U36 , U37 , U38 , U39>&& seq
             , typename disable_if<
                   is_convertible<deque<U0 , U1 , U2 , U3 , U4 , U5 , U6 , U7 , U8 , U9 , U10 , U11 , U12 , U13 , U14 , U15 , U16 , U17 , U18 , U19 , U20 , U21 , U22 , U23 , U24 , U25 , U26 , U27 , U28 , U29 , U30 , U31 , U32 , U33 , U34 , U35 , U36 , U37 , U38 , U39>, T0>
-              >::type* = 0)
+                , void_
+              >::type = void_())
             : base(std::forward<deque<U0 , U1 , U2 , U3 , U4 , U5 , U6 , U7 , U8 , U9 , U10 , U11 , U12 , U13 , U14 , U15 , U16 , U17 , U18 , U19 , U20 , U21 , U22 , U23 , U24 , U25 , U26 , U27 , U28 , U29 , U30 , U31 , U32 , U33 , U34 , U35 , U36 , U37 , U38 , U39>>(seq))
             {}
         template <typename T>
@@ -807,7 +808,7 @@ deque(T_0 && t0 , T_1 && t1 , T_2 && t2 , T_3 && t3 , T_4 && t4 , T_5 && t5 , T_
             typename enable_if<
                 mpl::and_<
                     traits::is_sequence<Sequence>
-                  , result_of::empty<Sequence> > >::type* = 0) BOOST_NOEXCEPT
+                  , result_of::empty<Sequence> >, void_>::type = void_()) BOOST_NOEXCEPT
         {}
         BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
         deque() BOOST_NOEXCEPT {}
diff --git a/include/boost/fusion/container/deque/detail/cpp03/preprocessed/deque50.hpp b/include/boost/fusion/container/deque/detail/cpp03/preprocessed/deque50.hpp
index a387708b..c6e90120 100644
--- a/include/boost/fusion/container/deque/detail/cpp03/preprocessed/deque50.hpp
+++ b/include/boost/fusion/container/deque/detail/cpp03/preprocessed/deque50.hpp
@@ -922,8 +922,8 @@ deque(T_0 && t0 , T_1 && t1 , T_2 && t2 , T_3 && t3 , T_4 && t4 , T_5 && t5 , T_
         template<typename Sequence>
         BOOST_FUSION_GPU_ENABLED
         deque(Sequence const& seq
-            , typename disable_if<is_convertible<Sequence, T0> >::type* = 0
-            , typename enable_if<traits::is_sequence<Sequence> >::type* = 0)
+            , typename disable_if<is_convertible<Sequence, T0>, void_>::type = void_()
+            , typename enable_if<traits::is_sequence<Sequence>, void_>::type = void_())
             : base(base::from_iterator(fusion::begin(seq)))
             {}
         template <typename U0 , typename U1 , typename U2 , typename U3 , typename U4 , typename U5 , typename U6 , typename U7 , typename U8 , typename U9 , typename U10 , typename U11 , typename U12 , typename U13 , typename U14 , typename U15 , typename U16 , typename U17 , typename U18 , typename U19 , typename U20 , typename U21 , typename U22 , typename U23 , typename U24 , typename U25 , typename U26 , typename U27 , typename U28 , typename U29 , typename U30 , typename U31 , typename U32 , typename U33 , typename U34 , typename U35 , typename U36 , typename U37 , typename U38 , typename U39 , typename U40 , typename U41 , typename U42 , typename U43 , typename U44 , typename U45 , typename U46 , typename U47 , typename U48 , typename U49>
@@ -946,7 +946,7 @@ deque(T_0 && t0 , T_1 && t1 , T_2 && t2 , T_3 && t3 , T_4 && t4 , T_5 && t5 , T_
         template <typename T0_>
         BOOST_FUSION_GPU_ENABLED
         explicit deque(T0_&& t0
-          , typename enable_if<is_convertible<T0_, T0> >::type* = 0
+          , typename enable_if<is_convertible<T0_, T0>, void_>::type = void_()
          )
             : base(std::forward<T0_>( t0), detail::nil_keyed_element())
             {}
@@ -959,7 +959,8 @@ deque(T_0 && t0 , T_1 && t1 , T_2 && t2 , T_3 && t3 , T_4 && t4 , T_5 && t5 , T_
         deque(deque<U0 , U1 , U2 , U3 , U4 , U5 , U6 , U7 , U8 , U9 , U10 , U11 , U12 , U13 , U14 , U15 , U16 , U17 , U18 , U19 , U20 , U21 , U22 , U23 , U24 , U25 , U26 , U27 , U28 , U29 , U30 , U31 , U32 , U33 , U34 , U35 , U36 , U37 , U38 , U39 , U40 , U41 , U42 , U43 , U44 , U45 , U46 , U47 , U48 , U49>&& seq
             , typename disable_if<
                   is_convertible<deque<U0 , U1 , U2 , U3 , U4 , U5 , U6 , U7 , U8 , U9 , U10 , U11 , U12 , U13 , U14 , U15 , U16 , U17 , U18 , U19 , U20 , U21 , U22 , U23 , U24 , U25 , U26 , U27 , U28 , U29 , U30 , U31 , U32 , U33 , U34 , U35 , U36 , U37 , U38 , U39 , U40 , U41 , U42 , U43 , U44 , U45 , U46 , U47 , U48 , U49>, T0>
-              >::type* = 0)
+                , void_
+              >::type = void_())
             : base(std::forward<deque<U0 , U1 , U2 , U3 , U4 , U5 , U6 , U7 , U8 , U9 , U10 , U11 , U12 , U13 , U14 , U15 , U16 , U17 , U18 , U19 , U20 , U21 , U22 , U23 , U24 , U25 , U26 , U27 , U28 , U29 , U30 , U31 , U32 , U33 , U34 , U35 , U36 , U37 , U38 , U39 , U40 , U41 , U42 , U43 , U44 , U45 , U46 , U47 , U48 , U49>>(seq))
             {}
         template <typename T>
@@ -987,7 +988,7 @@ deque(T_0 && t0 , T_1 && t1 , T_2 && t2 , T_3 && t3 , T_4 && t4 , T_5 && t5 , T_
             typename enable_if<
                 mpl::and_<
                     traits::is_sequence<Sequence>
-                  , result_of::empty<Sequence> > >::type* = 0) BOOST_NOEXCEPT
+                  , result_of::empty<Sequence> >, void_>::type = void_()) BOOST_NOEXCEPT
         {}
         BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
         deque() BOOST_NOEXCEPT {}
diff --git a/include/boost/fusion/container/list/detail/cpp03/preprocessed/list10.hpp b/include/boost/fusion/container/list/detail/cpp03/preprocessed/list10.hpp
index 47db8f58..f66fe303 100644
--- a/include/boost/fusion/container/list/detail/cpp03/preprocessed/list10.hpp
+++ b/include/boost/fusion/container/list/detail/cpp03/preprocessed/list10.hpp
@@ -30,7 +30,7 @@ namespace boost { namespace fusion
         template <typename Sequence>
         BOOST_FUSION_GPU_ENABLED
         list(Sequence const& rhs
-            , typename boost::enable_if<traits::is_sequence<Sequence> >::type* = 0)
+            , typename boost::enable_if<traits::is_sequence<Sequence>, void_>::type = void_())
             : inherited_type(rhs) {}
         
         
diff --git a/include/boost/fusion/container/list/detail/cpp03/preprocessed/list20.hpp b/include/boost/fusion/container/list/detail/cpp03/preprocessed/list20.hpp
index 8eb7d2d2..3486ef18 100644
--- a/include/boost/fusion/container/list/detail/cpp03/preprocessed/list20.hpp
+++ b/include/boost/fusion/container/list/detail/cpp03/preprocessed/list20.hpp
@@ -30,7 +30,7 @@ namespace boost { namespace fusion
         template <typename Sequence>
         BOOST_FUSION_GPU_ENABLED
         list(Sequence const& rhs
-            , typename boost::enable_if<traits::is_sequence<Sequence> >::type* = 0)
+            , typename boost::enable_if<traits::is_sequence<Sequence>, void_>::type = void_())
             : inherited_type(rhs) {}
         
         
diff --git a/include/boost/fusion/container/list/detail/cpp03/preprocessed/list30.hpp b/include/boost/fusion/container/list/detail/cpp03/preprocessed/list30.hpp
index fb24e8d4..b9e251a8 100644
--- a/include/boost/fusion/container/list/detail/cpp03/preprocessed/list30.hpp
+++ b/include/boost/fusion/container/list/detail/cpp03/preprocessed/list30.hpp
@@ -30,7 +30,7 @@ namespace boost { namespace fusion
         template <typename Sequence>
         BOOST_FUSION_GPU_ENABLED
         list(Sequence const& rhs
-            , typename boost::enable_if<traits::is_sequence<Sequence> >::type* = 0)
+            , typename boost::enable_if<traits::is_sequence<Sequence>, void_>::type = void_())
             : inherited_type(rhs) {}
         
         
diff --git a/include/boost/fusion/container/list/detail/cpp03/preprocessed/list40.hpp b/include/boost/fusion/container/list/detail/cpp03/preprocessed/list40.hpp
index 49437dee..a6825899 100644
--- a/include/boost/fusion/container/list/detail/cpp03/preprocessed/list40.hpp
+++ b/include/boost/fusion/container/list/detail/cpp03/preprocessed/list40.hpp
@@ -30,7 +30,7 @@ namespace boost { namespace fusion
         template <typename Sequence>
         BOOST_FUSION_GPU_ENABLED
         list(Sequence const& rhs
-            , typename boost::enable_if<traits::is_sequence<Sequence> >::type* = 0)
+            , typename boost::enable_if<traits::is_sequence<Sequence>, void_>::type = void_())
             : inherited_type(rhs) {}
         
         
diff --git a/include/boost/fusion/container/list/detail/cpp03/preprocessed/list50.hpp b/include/boost/fusion/container/list/detail/cpp03/preprocessed/list50.hpp
index 3ebbf195..33cb1246 100644
--- a/include/boost/fusion/container/list/detail/cpp03/preprocessed/list50.hpp
+++ b/include/boost/fusion/container/list/detail/cpp03/preprocessed/list50.hpp
@@ -30,7 +30,7 @@ namespace boost { namespace fusion
         template <typename Sequence>
         BOOST_FUSION_GPU_ENABLED
         list(Sequence const& rhs
-            , typename boost::enable_if<traits::is_sequence<Sequence> >::type* = 0)
+            , typename boost::enable_if<traits::is_sequence<Sequence>, void_>::type = void_())
             : inherited_type(rhs) {}
         
         
diff --git a/include/boost/fusion/container/set/detail/cpp03/preprocessed/set10.hpp b/include/boost/fusion/container/set/detail/cpp03/preprocessed/set10.hpp
index d2eba4c8..0c279756 100644
--- a/include/boost/fusion/container/set/detail/cpp03/preprocessed/set10.hpp
+++ b/include/boost/fusion/container/set/detail/cpp03/preprocessed/set10.hpp
@@ -8,7 +8,6 @@
 ==============================================================================*/
 namespace boost { namespace fusion
 {
-    struct void_;
     struct fusion_sequence_tag;
     template <typename T0 , typename T1 , typename T2 , typename T3 , typename T4 , typename T5 , typename T6 , typename T7 , typename T8 , typename T9>
     struct set : sequence_base<set<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9> >
@@ -27,7 +26,7 @@ namespace boost { namespace fusion
         template <typename Sequence>
         BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
         set(Sequence const& rhs
-            , typename boost::enable_if<traits::is_sequence<Sequence> >::type* = 0)
+            , typename boost::enable_if<traits::is_sequence<Sequence>, void_>::type = void_())
             : data(rhs) {}
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
     explicit
diff --git a/include/boost/fusion/container/set/detail/cpp03/preprocessed/set20.hpp b/include/boost/fusion/container/set/detail/cpp03/preprocessed/set20.hpp
index 500e726e..2d224452 100644
--- a/include/boost/fusion/container/set/detail/cpp03/preprocessed/set20.hpp
+++ b/include/boost/fusion/container/set/detail/cpp03/preprocessed/set20.hpp
@@ -8,7 +8,6 @@
 ==============================================================================*/
 namespace boost { namespace fusion
 {
-    struct void_;
     struct fusion_sequence_tag;
     template <typename T0 , typename T1 , typename T2 , typename T3 , typename T4 , typename T5 , typename T6 , typename T7 , typename T8 , typename T9 , typename T10 , typename T11 , typename T12 , typename T13 , typename T14 , typename T15 , typename T16 , typename T17 , typename T18 , typename T19>
     struct set : sequence_base<set<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19> >
@@ -27,7 +26,7 @@ namespace boost { namespace fusion
         template <typename Sequence>
         BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
         set(Sequence const& rhs
-            , typename boost::enable_if<traits::is_sequence<Sequence> >::type* = 0)
+            , typename boost::enable_if<traits::is_sequence<Sequence>, void_>::type = void_())
             : data(rhs) {}
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
     explicit
diff --git a/include/boost/fusion/container/set/detail/cpp03/preprocessed/set30.hpp b/include/boost/fusion/container/set/detail/cpp03/preprocessed/set30.hpp
index 6c92bead..586d1ccf 100644
--- a/include/boost/fusion/container/set/detail/cpp03/preprocessed/set30.hpp
+++ b/include/boost/fusion/container/set/detail/cpp03/preprocessed/set30.hpp
@@ -8,7 +8,6 @@
 ==============================================================================*/
 namespace boost { namespace fusion
 {
-    struct void_;
     struct fusion_sequence_tag;
     template <typename T0 , typename T1 , typename T2 , typename T3 , typename T4 , typename T5 , typename T6 , typename T7 , typename T8 , typename T9 , typename T10 , typename T11 , typename T12 , typename T13 , typename T14 , typename T15 , typename T16 , typename T17 , typename T18 , typename T19 , typename T20 , typename T21 , typename T22 , typename T23 , typename T24 , typename T25 , typename T26 , typename T27 , typename T28 , typename T29>
     struct set : sequence_base<set<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> >
@@ -27,7 +26,7 @@ namespace boost { namespace fusion
         template <typename Sequence>
         BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
         set(Sequence const& rhs
-            , typename boost::enable_if<traits::is_sequence<Sequence> >::type* = 0)
+            , typename boost::enable_if<traits::is_sequence<Sequence>, void_>::type = void_())
             : data(rhs) {}
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
     explicit
diff --git a/include/boost/fusion/container/set/detail/cpp03/preprocessed/set40.hpp b/include/boost/fusion/container/set/detail/cpp03/preprocessed/set40.hpp
index d3c3e5eb..6e972413 100644
--- a/include/boost/fusion/container/set/detail/cpp03/preprocessed/set40.hpp
+++ b/include/boost/fusion/container/set/detail/cpp03/preprocessed/set40.hpp
@@ -8,7 +8,6 @@
 ==============================================================================*/
 namespace boost { namespace fusion
 {
-    struct void_;
     struct fusion_sequence_tag;
     template <typename T0 , typename T1 , typename T2 , typename T3 , typename T4 , typename T5 , typename T6 , typename T7 , typename T8 , typename T9 , typename T10 , typename T11 , typename T12 , typename T13 , typename T14 , typename T15 , typename T16 , typename T17 , typename T18 , typename T19 , typename T20 , typename T21 , typename T22 , typename T23 , typename T24 , typename T25 , typename T26 , typename T27 , typename T28 , typename T29 , typename T30 , typename T31 , typename T32 , typename T33 , typename T34 , typename T35 , typename T36 , typename T37 , typename T38 , typename T39>
     struct set : sequence_base<set<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> >
@@ -27,7 +26,7 @@ namespace boost { namespace fusion
         template <typename Sequence>
         BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
         set(Sequence const& rhs
-            , typename boost::enable_if<traits::is_sequence<Sequence> >::type* = 0)
+            , typename boost::enable_if<traits::is_sequence<Sequence>, void_>::type = void_())
             : data(rhs) {}
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
     explicit
diff --git a/include/boost/fusion/container/set/detail/cpp03/preprocessed/set50.hpp b/include/boost/fusion/container/set/detail/cpp03/preprocessed/set50.hpp
index 1d2dfd44..09377d32 100644
--- a/include/boost/fusion/container/set/detail/cpp03/preprocessed/set50.hpp
+++ b/include/boost/fusion/container/set/detail/cpp03/preprocessed/set50.hpp
@@ -8,7 +8,6 @@
 ==============================================================================*/
 namespace boost { namespace fusion
 {
-    struct void_;
     struct fusion_sequence_tag;
     template <typename T0 , typename T1 , typename T2 , typename T3 , typename T4 , typename T5 , typename T6 , typename T7 , typename T8 , typename T9 , typename T10 , typename T11 , typename T12 , typename T13 , typename T14 , typename T15 , typename T16 , typename T17 , typename T18 , typename T19 , typename T20 , typename T21 , typename T22 , typename T23 , typename T24 , typename T25 , typename T26 , typename T27 , typename T28 , typename T29 , typename T30 , typename T31 , typename T32 , typename T33 , typename T34 , typename T35 , typename T36 , typename T37 , typename T38 , typename T39 , typename T40 , typename T41 , typename T42 , typename T43 , typename T44 , typename T45 , typename T46 , typename T47 , typename T48 , typename T49>
     struct set : sequence_base<set<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> >
@@ -27,7 +26,7 @@ namespace boost { namespace fusion
         template <typename Sequence>
         BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
         set(Sequence const& rhs
-            , typename boost::enable_if<traits::is_sequence<Sequence> >::type* = 0)
+            , typename boost::enable_if<traits::is_sequence<Sequence>, void_>::type = void_())
             : data(rhs) {}
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
     explicit
diff --git a/include/boost/fusion/container/vector/detail/cpp03/preprocessed/vvector10.hpp b/include/boost/fusion/container/vector/detail/cpp03/preprocessed/vvector10.hpp
index cd2bd58b..48a94579 100644
--- a/include/boost/fusion/container/vector/detail/cpp03/preprocessed/vvector10.hpp
+++ b/include/boost/fusion/container/vector/detail/cpp03/preprocessed/vvector10.hpp
@@ -40,7 +40,7 @@ namespace boost { namespace fusion
         template <typename Sequence>
         BOOST_FUSION_GPU_ENABLED
         vector(Sequence const& rhs,
-            typename boost::enable_if<traits::is_sequence<Sequence> >::type* = 0)
+            typename boost::enable_if<traits::is_sequence<Sequence>, void_>::type = void_())
             : vec(BOOST_FUSION_VECTOR_COPY_INIT()) {}
         
         
diff --git a/include/boost/fusion/container/vector/detail/cpp03/preprocessed/vvector20.hpp b/include/boost/fusion/container/vector/detail/cpp03/preprocessed/vvector20.hpp
index 809485fe..50b79f49 100644
--- a/include/boost/fusion/container/vector/detail/cpp03/preprocessed/vvector20.hpp
+++ b/include/boost/fusion/container/vector/detail/cpp03/preprocessed/vvector20.hpp
@@ -40,7 +40,7 @@ namespace boost { namespace fusion
         template <typename Sequence>
         BOOST_FUSION_GPU_ENABLED
         vector(Sequence const& rhs,
-            typename boost::enable_if<traits::is_sequence<Sequence> >::type* = 0)
+            typename boost::enable_if<traits::is_sequence<Sequence>, void_>::type = void_())
             : vec(BOOST_FUSION_VECTOR_COPY_INIT()) {}
         
         
diff --git a/include/boost/fusion/container/vector/detail/cpp03/preprocessed/vvector30.hpp b/include/boost/fusion/container/vector/detail/cpp03/preprocessed/vvector30.hpp
index 3f75a05f..e222a528 100644
--- a/include/boost/fusion/container/vector/detail/cpp03/preprocessed/vvector30.hpp
+++ b/include/boost/fusion/container/vector/detail/cpp03/preprocessed/vvector30.hpp
@@ -40,7 +40,7 @@ namespace boost { namespace fusion
         template <typename Sequence>
         BOOST_FUSION_GPU_ENABLED
         vector(Sequence const& rhs,
-            typename boost::enable_if<traits::is_sequence<Sequence> >::type* = 0)
+            typename boost::enable_if<traits::is_sequence<Sequence>, void_>::type = void_())
             : vec(BOOST_FUSION_VECTOR_COPY_INIT()) {}
         
         
diff --git a/include/boost/fusion/container/vector/detail/cpp03/preprocessed/vvector40.hpp b/include/boost/fusion/container/vector/detail/cpp03/preprocessed/vvector40.hpp
index 6c7654cc..713465f7 100644
--- a/include/boost/fusion/container/vector/detail/cpp03/preprocessed/vvector40.hpp
+++ b/include/boost/fusion/container/vector/detail/cpp03/preprocessed/vvector40.hpp
@@ -40,7 +40,7 @@ namespace boost { namespace fusion
         template <typename Sequence>
         BOOST_FUSION_GPU_ENABLED
         vector(Sequence const& rhs,
-            typename boost::enable_if<traits::is_sequence<Sequence> >::type* = 0)
+            typename boost::enable_if<traits::is_sequence<Sequence>, void_>::type = void_())
             : vec(BOOST_FUSION_VECTOR_COPY_INIT()) {}
         
         
diff --git a/include/boost/fusion/container/vector/detail/cpp03/preprocessed/vvector50.hpp b/include/boost/fusion/container/vector/detail/cpp03/preprocessed/vvector50.hpp
index 47fce0e1..80597591 100644
--- a/include/boost/fusion/container/vector/detail/cpp03/preprocessed/vvector50.hpp
+++ b/include/boost/fusion/container/vector/detail/cpp03/preprocessed/vvector50.hpp
@@ -40,7 +40,7 @@ namespace boost { namespace fusion
         template <typename Sequence>
         BOOST_FUSION_GPU_ENABLED
         vector(Sequence const& rhs,
-            typename boost::enable_if<traits::is_sequence<Sequence> >::type* = 0)
+            typename boost::enable_if<traits::is_sequence<Sequence>, void_>::type = void_())
             : vec(BOOST_FUSION_VECTOR_COPY_INIT()) {}