Merge branch 'develop'

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

@@ -220,21 +220,12 @@ namespace boost { namespace fusion
             void
             assign_sequence(Sequence&& seq)
             {
-                assign(std::forward<Sequence>(seq), detail::index_sequence<I...>());
-            }
-
-            template <typename Sequence>
-            BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-            void
-            assign(Sequence&&, detail::index_sequence<>) {}
-
-            template <typename Sequence, std::size_t N, std::size_t ...M>
-            BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-            void
-            assign(Sequence&& seq, detail::index_sequence<N, M...>)
-            {
-                at_impl(mpl::int_<N>()) = vector_detail::forward_at_c<N>(seq);
-                assign(std::forward<Sequence>(seq), detail::index_sequence<M...>());
+#ifndef BOOST_NO_CXX17_FOLD_EXPRESSIONS
+                (void(store<I, T>::elem = vector_detail::forward_at_c<I>(static_cast<Sequence&&>(seq))), ...);
+#else
+                int nofold[] = { (void(store<I, T>::elem = vector_detail::forward_at_c<I>(static_cast<Sequence&&>(seq))), 0)..., 0 };
+                (void)nofold;
+#endif
             }
 
         private:

include/boost/fusion/container/vector/vector_iterator.hpp

@@ -19,6 +19,11 @@
 #include <boost/type_traits/add_const.hpp>
 #include <boost/mpl/int.hpp>
 
+#ifdef _MSC_VER
+#  pragma warning(push)
+#  pragma warning(disable: 4512) // assignment operator could not be generated.
+#endif
+
 namespace boost { namespace fusion
 {
     struct vector_iterator_tag;
@@ -41,17 +46,14 @@ namespace boost { namespace fusion
         vector_iterator(Vector& in_vec)
             : vec(in_vec) {}
 
-        BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-        vector_iterator(vector_iterator const& rhs)
-            : vec(rhs.vec) {}
-
         Vector& vec;
-
-        // silence MSVC warning C4512: assignment operator could not be generated
-        BOOST_DELETED_FUNCTION(vector_iterator& operator= (vector_iterator const&))
     };
 }}
 
+#ifdef _MSC_VER
+#  pragma warning(pop)
+#endif
+
 #ifdef BOOST_FUSION_WORKAROUND_FOR_LWG_2408
 namespace std
 {