--- /dev/null
+// { 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/>.
+
+// 8.32 Additions to header <cwctype>
+
+#include <tr1/cwctype>
+
+#if _GLIBCXX_USE_WCHAR_T
+
+void test01()
+{
+#if _GLIBCXX_HAVE_ISWBLANK
+
+ std::wint_t ch = 0;
+ int ret;
+ ret = std::tr1::iswblank(ch);
+
+#endif
+}
+
+#endif