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diff --git a/libstdc++-v3/testsuite/performance/is_wchar_t.cc b/libstdc++-v3/testsuite/performance/is_wchar_t.cc
new file mode 100644
index 00000000000..e35edd023cb
--- /dev/null
+++ b/libstdc++-v3/testsuite/performance/is_wchar_t.cc
@@ -0,0 +1,87 @@
+// Copyright (C) 2003 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 2, 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 COPYING.  If not, write to the Free
+// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+// USA.
+
+// As a special exception, you may use this file as part of a free software
+// library without restriction.  Specifically, if other files instantiate
+// templates or use macros or inline functions from this file, or you compile
+// this file and link it with other files to produce an executable, this
+// file does not by itself cause the resulting executable to be covered by
+// the GNU General Public License.  This exception does not however
+// invalidate any other reasons why the executable file might be covered by
+// the GNU General Public License.
+
+#include <locale>
+#include <cwctype>
+#include <cstddef>
+#include <testsuite_performance.h>
+
+int main()
+{
+  using namespace std;
+  using namespace __gnu_test;
+
+  time_counter time;
+  resource_counter resource;
+  const wchar_t str[] =
+    L"Is this the real life?\n"
+    L"Is this just fantasy?\n"
+    L"Caught in a landslide\n"
+    L"No escape from reality\n"
+    L"Open your eyes\n"
+    L"Look up to the skies and see\n"
+    L"I'm just a poor boy\n"
+    L"I need no sympathy\n"
+    L"Because I'm easy come, easy go\n"
+    L"Little high, little low"
+    L"Anyway the wind blows\n"
+    L"Doesn't really matter to me\n"
+    L"To me\n"
+    L"                      -- Queen\n";
+  const size_t len = sizeof(str) / sizeof(str[0]) - 1;
+
+  locale loc;
+  const ctype<wchar_t>& ct = use_facet<ctype<wchar_t> >(loc);
+
+  // C
+  wctype_t w = wctype("space");
+  start_counters(time, resource);
+  for (int j = 0; j < 200000; ++j)
+    {
+      for (size_t i = 0; i < len; ++i)
+	{
+	  iswctype(str[i], w);
+	}
+    }
+  stop_counters(time, resource);
+  report_performance(__FILE__, "C", time, resource);
+  clear_counters(time, resource);
+
+  // C++
+  start_counters(time, resource);
+  for (int j = 0; j < 200000; ++j)
+    {
+      for (size_t i = 0; i < len; ++i)
+	{
+	  ct.is(ctype_base::space, str[i]);
+	}
+    }
+  stop_counters(time, resource);
+  report_performance(__FILE__, "C++", time, resource);
+
+  return 0;
+}