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+/* Test raising a signal.
+ Copyright (C) 2011-2017 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 <https://www.gnu.org/licenses/>. */
+
+#include <config.h>
+
+#include <signal.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (raise, int, (int));
+
+#include <stdlib.h>
+
+#include "macros.h"
+
+/* It is safe to use _Noreturn here: exit() never returns, and GCC knows that
+ exit() is a non-returning function, even on platforms where its declaration
+ in <stdlib.h> does not have the 'noreturn' attribute. */
+static _Noreturn void
+handler (int sig)
+{
+ exit (0);
+}
+
+int
+main (void)
+{
+ /* Test behaviour for invalid argument. */
+ ASSERT (raise (-1) != 0);
+
+ /* Test behaviour for SIGINT. */
+ ASSERT (signal (SIGINT, handler) != SIG_ERR);
+
+ raise (SIGINT);
+
+ /* We should not get here, because the handler takes away the control. */
+ exit (1);
+}