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+/* Test of iswblank() function.
+ Copyright (C) 2007-2015 Free Software Foundation, Inc.
+
+ This program 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 of the License, or
+ (at your option) any later version.
+
+ This program 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 program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include <config.h>
+
+#include <wctype.h>
+
+#include "macros.h"
+
+/* Check that WEOF is defined. */
+wint_t e = WEOF;
+
+int
+main (void)
+{
+ /* Check that the function exist as a function or as a macro. */
+ (void) iswblank (0);
+ /* Check that the isw* functions map WEOF to 0. */
+ ASSERT (!iswblank (e));
+
+ return 0;
+}