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diff --git a/libstdc++-v3/testsuite/21_strings/char_traits/requirements/wchar_t/typedefs.cc b/libstdc++-v3/testsuite/21_strings/char_traits/requirements/wchar_t/typedefs.cc
new file mode 100644
index 00000000..56ec4117
--- /dev/null
+++ b/libstdc++-v3/testsuite/21_strings/char_traits/requirements/wchar_t/typedefs.cc
@@ -0,0 +1,41 @@
+// { dg-do compile }
+// 2001-02-11 gdr
+// Origin: Craig Rodrigues <rodrigc@mediaone.net>
+
+// Copyright (C) 2001, 2003, 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/>.
+
+// 21.1.2: char_traits typedefs
+
+#include <string>
+
+int main()
+{
+  // Check for required typedefs.
+  typedef std::char_traits<wchar_t> test_type;
+  typedef test_type::char_type char_type;
+  typedef test_type::int_type int_type;
+  typedef test_type::off_type off_type;
+  typedef test_type::pos_type pos_type;
+  typedef test_type::state_type state_type;
+
+  // 21.1.3: char_traits<wchar_t>::int_type == wint_t
+  test_type::int_type* p = 0;
+  wint_t* q __attribute__((unused)) = p;                   
+
+  return 0;
+}