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/* Test raising a signal.
Copyright (C) 2011-2024 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 <unistd.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 <unistd.h> does not have the 'noreturn' attribute. */
static _Noreturn void
handler (_GL_UNUSED 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);
}
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