+// { dg-do compile }
+// { dg-require-c-std "" }
+
+// Copyright (C) 2007, 2009 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 <sstream>
+
+namespace gnu
+{
+ typedef std::stringbuf t1;
+ typedef std::wstringbuf t2;
+
+ typedef std::istringstream t3;
+ typedef std::wistringstream t4;
+
+ typedef std::ostringstream t5;
+ typedef std::wostringstream t6;
+
+ typedef std::stringstream t7;
+ typedef std::wstringstream t8;
+}