test-raise.c
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test-raise.c
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	/* Test raising a signal.
	Copyright (C) 2011-2012 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 <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);
	ASSERT (raise (199) != 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);
	}