Index: variant/variant.hpp
===================================================================
--- variant/variant.hpp	(revision 85584)
+++ variant/variant.hpp	(working copy)
@@ -367,6 +367,11 @@
         return operand;
     }
 
+#if defined BOOST_MSVC
+# pragma warning( push )
+# pragma warning( disable : 4702 ) // unreachable code
+#endif
+
     template <typename U>
     T& operator()(U&) const
     {
@@ -375,6 +380,11 @@
         return ::boost::detail::variant::forced_return< T& >();
     }
 
+#if defined BOOST_MSVC
+# pragma warning( pop )
+#endif
+
+
 #else // MSVC6
 
 private: // helpers, for visitor interface (below)