/* 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 <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);

  /* 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);

}