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diff --git a/libstdc++-v3/testsuite/tr1/8_c_compatibility/cwchar/functions.cc b/libstdc++-v3/testsuite/tr1/8_c_compatibility/cwchar/functions.cc
new file mode 100644
index 00000000..2a572204
--- /dev/null
+++ b/libstdc++-v3/testsuite/tr1/8_c_compatibility/cwchar/functions.cc
@@ -0,0 +1,78 @@
+// { dg-do compile }
+
+// 2006-02-03  Paolo Carlini  <pcarlini@suse.de>
+//
+// Copyright (C) 2006, 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/>.
+
+// 8.6 Additions to header <cwchar>
+
+#include <tr1/cwchar>
+#include <cstdio>
+#include <cstdarg>
+
+#if _GLIBCXX_USE_WCHAR_T
+
+void test01(int dummy, ...)
+{
+  std::va_list arg;
+  va_start(arg, dummy);
+
+#if _GLIBCXX_HAVE_WCSTOF
+  const wchar_t* nptr1 = 0;
+  wchar_t** endptr1 = 0;
+  float fret;
+  fret = std::tr1::wcstof(nptr1, endptr1);
+#endif
+
+#if _GLIBCXX_HAVE_VFWSCANF
+  FILE* stream = 0;
+  const wchar_t* format1 = 0;
+  int ret1;
+  ret1 = std::tr1::vfwscanf(stream, format1, arg);
+#endif
+
+#if _GLIBCXX_HAVE_VSWSCANF
+  const wchar_t* s = 0;
+  const wchar_t* format2 = 0;
+  int ret2;
+  ret2 = std::tr1::vswscanf(s, format2, arg);
+#endif
+
+#if _GLIBCXX_HAVE_VWSCANF
+  const wchar_t* format3 = 0;
+  int ret3;
+  ret3 = std::tr1::vwscanf(format3, arg);
+#endif
+
+#if _GLIBCXX_USE_C99
+
+  const wchar_t* nptr2 = 0;
+  wchar_t** endptr2 = 0;
+  long double ldret;
+  ldret = std::tr1::wcstold(nptr2, endptr2);
+
+  int base = 0;
+  long long llret;
+  unsigned long long ullret;
+  llret = std::tr1::wcstoll(nptr2, endptr2, base);
+  ullret = std::tr1::wcstoull(nptr2, endptr2, base);
+
+#endif
+}
+
+#endif