re PR libstdc++/48430 (std::hash partial specialization for std::unique_ptr and…

re PR libstdc++/48430 (std::hash partial specialization for std::unique_ptr and std::shared_ptr are using unary_function)

2011-07-18  Paolo Carlini  <paolo.carlini@oracle.com>

	PR libstdc++/48430
	* include/bits/shared_ptr.h (struct hash<shared_ptr<>>): Use
	__hash_base.
	* include/bits/unique_ptr.h (struct hash<unique_ptr<>>): Likewise.

From-SVN: r176405

libstdc++-v3/ChangeLog

+2011-07-18  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR libstdc++/48430
+	* include/bits/shared_ptr.h (struct hash<shared_ptr<>>): Use
+	__hash_base.
+	* include/bits/unique_ptr.h (struct hash<unique_ptr<>>): Likewise.
+
 2011-07-18  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	* crossconfig.m4 (*-netware): Remove.

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

@@ -614,7 +614,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
   /// std::hash specialization for shared_ptr.
   template<typename _Tp>
     struct hash<shared_ptr<_Tp>>
-    : public std::unary_function<shared_ptr<_Tp>, size_t>
+    : public __hash_base<size_t, shared_ptr<_Tp>>
     {
       size_t
       operator()(const shared_ptr<_Tp>& __s) const

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

@@ -542,7 +542,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
   /// std::hash specialization for unique_ptr.
   template<typename _Tp, typename _Dp>
     struct hash<unique_ptr<_Tp, _Dp>>
-    : public std::unary_function<unique_ptr<_Tp, _Dp>, size_t>
+    : public __hash_base<size_t, unique_ptr<_Tp, _Dp>>
     {
       size_t
       operator()(const unique_ptr<_Tp, _Dp>& __u) const