re PR libstdc++/33098 ([c++0x] __is_convertible_helper in type_traits uses…

re PR libstdc++/33098 ([c++0x] __is_convertible_helper in type_traits uses deprecated add_reference)

2007-08-17  Chris Fairles  <chris.fairles@gmail.com>

	PR libstdc++/33098
	* include/std/type_traits (__is_convertible_helper):
	Use add_lvalue_reference.

From-SVN: r127588

libstdc++-v3/ChangeLog

+2007-08-17  Chris Fairles  <chris.fairles@gmail.com>
+
+	PR libstdc++/33098
+	* include/std/type_traits (__is_convertible_helper):
+	Use add_lvalue_reference.
+
 2007-08-17  Johannes Willkomm  <willkomm@sc.rwth-aachen.de>
 
 	PR libstdc++/33084

libstdc++-v3/include/std/type_traits

@@ -240,7 +240,8 @@ namespace std
     {
       // "An imaginary lvalue of type From...".
       static const bool __value = (__is_convertible_simple<typename
-				   add_reference<_From>::type, _To>::__value);
+				   add_lvalue_reference<_From>::type,
+				   _To>::__value);
     };
 
   template<typename _From, typename _To>