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diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/substr/wchar_t/1.cc b/libstdc++-v3/testsuite/21_strings/basic_string/substr/wchar_t/1.cc
new file mode 100644
index 00000000000..843ebb6861a
--- /dev/null
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/substr/wchar_t/1.cc
@@ -0,0 +1,80 @@
+// 1999-06-10 bkoz
+
+// Copyright (C) 1999, 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.
+
+// 21.3.6.7 basic_string::substr
+
+#include <string>
+#include <stdexcept>
+#include <testsuite_hooks.h>
+
+bool test01(void)
+{
+  bool test = true;
+  typedef std::wstring::size_type csize_type;
+  typedef std::wstring::const_reference cref;
+  typedef std::wstring::reference ref;
+  csize_type npos = std::wstring::npos;
+  csize_type csz01, csz02;
+
+  const wchar_t str_lit01[] = L"rockaway, pacifica";
+  const std::wstring str01(str_lit01);
+  std::wstring str02;
+
+  // basic_string<charT, _Traits, _Alloc>
+  //  substr(size_type pos = 0, size_type n = npos) const;
+  csz01 = str01.size();
+  str02 = str01.substr(0, 1);
+  VERIFY( str02 == L"r" );
+  str02 = str01.substr(10);
+  VERIFY( str02 == L"pacifica" );
+
+  try {
+    str02 = str01.substr(csz01 + 1);
+    VERIFY( false ); 
+  }
+  catch(std::out_of_range& fail) {
+    VERIFY( true );
+  }
+  catch(...) {
+    VERIFY( false );
+  }
+
+ try {
+    str02 = str01.substr(csz01);
+    VERIFY( str02.size() == 0 );
+  }
+  catch(std::out_of_range& fail) {
+    VERIFY( false );
+  }
+  catch(...) {
+    VERIFY( false );
+  }
+
+#ifdef DEBUG_ASSERT
+  assert(test);
+#endif
+  return test;
+}
+
+int main()
+{ 
+  test01();
+  return 0;
+}