functional (function<>::swap): Use std::swap.

2010-10-04  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/std/functional (function<>::swap): Use std::swap.
	* include/tr1/functional (function<>::swap): Likewise.

From-SVN: r164952

libstdc++-v3/ChangeLog

+2010-10-04  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	* include/std/functional (function<>::swap): Use std::swap.
+	* include/tr1/functional (function<>::swap): Likewise.
+
 2010-10-04  Andreas Schwab  <schwab@redhat.com>
 
 	* acinclude.m4 (GLIBCXX_ENABLE): Properly quote argument to

libstdc++-v3/include/std/functional

@@ -1940,15 +1940,9 @@ namespace std
        */
       void swap(function& __x)
       {
-	_Any_data __old_functor = _M_functor;
-	_M_functor = __x._M_functor;
-	__x._M_functor = __old_functor;
-	_Manager_type __old_manager = _M_manager;
-	_M_manager = __x._M_manager;
-	__x._M_manager = __old_manager;
-	_Invoker_type __old_invoker = _M_invoker;
-	_M_invoker = __x._M_invoker;
-	__x._M_invoker = __old_invoker;
+	std::swap(_M_functor, __x._M_functor);
+	std::swap(_M_manager, __x._M_manager);
+	std::swap(_M_invoker, __x._M_invoker);
       }
 
       // TODO: needs allocator_arg_t

libstdc++-v3/include/tr1/functional

@@ -1907,15 +1907,9 @@ namespace tr1
        */
       void swap(function& __x)
       {
-	_Any_data __old_functor = _M_functor;
-	_M_functor = __x._M_functor;
-	__x._M_functor = __old_functor;
-	_Manager_type __old_manager = _M_manager;
-	_M_manager = __x._M_manager;
-	__x._M_manager = __old_manager;
-	_Invoker_type __old_invoker = _M_invoker;
-	_M_invoker = __x._M_invoker;
-	__x._M_invoker = __old_invoker;
+	std::swap(_M_functor, __x._M_functor);
+	std::swap(_M_manager, __x._M_manager);
+	std::swap(_M_invoker, __x._M_invoker);
       }
 
       // [3.7.2.3] function capacity