re PR libstdc++/44708 (Enabling -std=c++0x results in ambiguous function…

re PR libstdc++/44708 (Enabling -std=c++0x results in ambiguous function overload in <ext/algorithm> header)

2010-06-29  Paolo Carlini  <paolo.carlini@oracle.com>

	PR libstdc++/44708
	* include/ext/algorithm (copy_n): Qualify __copy_n call with
	__gnu_cxx::
	* testsuite/ext/rope/44708.cc: New.

From-SVN: r161524

libstdc++-v3/ChangeLog

+2010-06-29  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR libstdc++/44708
+	* include/ext/algorithm (copy_n): Qualify __copy_n call with
+	__gnu_cxx::
+	* testsuite/ext/rope/44708.cc: New.
+
 2010-06-27  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	* include/bits/regex_compiler.h: Trivial formatting / stylistic fixes.

libstdc++-v3/include/ext/algorithm

@@ -123,8 +123,8 @@ _GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)
       __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator,
 	    typename iterator_traits<_InputIterator>::value_type>)
 
-      return __copy_n(__first, __count, __result,
-		      std::__iterator_category(__first));
+      return __gnu_cxx::__copy_n(__first, __count, __result,
+				 std::__iterator_category(__first));
     }
 
   template<typename _InputIterator1, typename _InputIterator2>

libstdc++-v3/testsuite/ext/rope/44708.cc

+// { dg-options "-std=gnu++0x" }
+// { dg-do compile }
+
+// Copyright (C) 2010 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+#include <iostream>
+#include <ext/rope>
+
+using namespace std;
+
+// libstdc++/44708
+void test01()
+{
+  __gnu_cxx::crope line("test-test-test");
+  cout << line.c_str() << endl;
+}