update boost

linx64/include/boost/fusion/adapted/boost_tuple/boost_tuple_iterator.hpp

@@ -45,6 +45,10 @@ namespace boost { namespace fusion
     template <typename Cons>
     struct boost_tuple_iterator_identity;
 
+#ifdef _MSC_VER
+#  pragma warning(push)
+#  pragma warning(disable: 4512) // assignment operator could not be generated.
+#endif
     template <typename Cons = tuples::null_type>
     struct boost_tuple_iterator
         : iterator_facade<boost_tuple_iterator<Cons>, forward_traversal_tag>
@@ -143,11 +147,10 @@ namespace boost { namespace fusion
         struct equal_to
             : is_same<typename I1::identity, typename I2::identity>
         {};
-
-    private:
-        // silence MSVC warning C4512: assignment operator could not be generated
-        boost_tuple_iterator& operator= (boost_tuple_iterator const&);
     };
+#ifdef _MSC_VER
+#  pragma warning(pop)
+#endif
 
     template <typename Null>
     struct boost_tuple_null_iterator