type_traits.h (__is_null_pointer): Add std::nullptr_t overload.

2013-05-24  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/ext/type_traits.h (__is_null_pointer): Add std::nullptr_t
	overload.

	* include/bits/cpp_type_traits.h (__is_fundamental): Remove, unused.

From-SVN: r199313

libstdc++-v3/ChangeLog

+2013-05-24  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	* include/ext/type_traits.h (__is_null_pointer): Add std::nullptr_t
+	overload.
+
+	* include/bits/cpp_type_traits.h (__is_fundamental): Remove, unused.
+
 2013-05-24  Jakub Jelinek  <jakub@redhat.com>
 
 	* src/c++11/chrono.cc: If _GLIBCXX_USE_CLOCK_GETTIME_SYSCALL,

libstdc++-v3/include/bits/cpp_type_traits.h

@@ -327,14 +327,6 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
     { };
 
   //
-  // A fundamental type is `void' or and arithmetic type
-  //
-  template<typename _Tp>
-    struct __is_fundamental
-    : public __traitor<__is_void<_Tp>, __is_arithmetic<_Tp> >
-    { };
-
-  //
   // A scalar type is an arithmetic type or a pointer type
   // 
   template<typename _Tp>

libstdc++-v3/include/ext/type_traits.h

@@ -155,6 +155,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
     __is_null_pointer(_Type)
     { return false; }
 
+#if __cplusplus >= 201103L
+  inline bool
+  __is_null_pointer(std::nullptr_t)
+  { return true; }
+#endif
 
   // For complex and cmath
   template<typename _Tp, bool = std::__is_integer<_Tp>::__value>