Index: boost/concept_check.hpp
===================================================================
--- boost/concept_check.hpp	(Revision 44112)
+++ boost/concept_check.hpp	(Arbeitskopie)
@@ -169,6 +169,11 @@
     TT b;
   };
 
+#if (defined _MSC_VER)
+# pragma warning( push )
+# pragma warning( disable : 4510 ) // default constructor could not be generated
+# pragma warning( disable : 4610 ) // object 'class' can never be instantiated - user-defined constructor required
+#endif
   // The SGI STL version of Assignable requires copy constructor and operator=
   BOOST_concept(SGIAssignable,(TT))
   {
@@ -190,6 +195,9 @@
     }
     TT a;
   };
+#if (defined _MSC_VER)
+# pragma warning( pop )
+#endif
 
   BOOST_concept(Convertible,(X)(Y))
   {