/* Test of <signal.h> substitute.

   Copyright (C) 2009-2020 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/>.  */

/* Written by Eric Blake <ebb9@byu.net>, 2009.  */

#include <config.h>

#include <signal.h>

/* Check for required types.  */

struct

{

  size_t a;

  uid_t b;

  volatile sig_atomic_t c;

  sigset_t d;

  pid_t e;

#if 0

  /* Not guaranteed by gnulib.  */

  pthread_t f;

  struct timespec g;

#endif

} s;

/* Check that NSIG is defined.  */

int nsig = NSIG;

int

main (void)

{

  switch (0)

    {

      /* The following are guaranteed by C.  */

    case 0:

    case SIGABRT:

    case SIGFPE:

    case SIGILL:

    case SIGINT:

    case SIGSEGV:

    case SIGTERM:

      /* The following is guaranteed by gnulib.  */

#if GNULIB_SIGPIPE || defined SIGPIPE

    case SIGPIPE:

#endif

      /* Ensure no conflict with other standardized names.  */

#ifdef SIGALRM

    case SIGALRM:

#endif

      /* On Haiku, SIGBUS is mistakenly equal to SIGSEGV.  */

#if defined SIGBUS && SIGBUS != SIGSEGV

    case SIGBUS:

#endif

#ifdef SIGCHLD

    case SIGCHLD:

#endif

#ifdef SIGCONT

    case SIGCONT:

#endif

#ifdef SIGHUP

    case SIGHUP:

#endif

#ifdef SIGKILL

    case SIGKILL:

#endif

#ifdef SIGQUIT

    case SIGQUIT:

#endif

#ifdef SIGSTOP

    case SIGSTOP:

#endif

#ifdef SIGTSTP

    case SIGTSTP:

#endif

#ifdef SIGTTIN

    case SIGTTIN:

#endif

#ifdef SIGTTOU

    case SIGTTOU:

#endif

#ifdef SIGUSR1

    case SIGUSR1:

#endif

#ifdef SIGUSR2

    case SIGUSR2:

#endif

#ifdef SIGSYS

    case SIGSYS:

#endif

#ifdef SIGTRAP

    case SIGTRAP:

#endif

#ifdef SIGURG

    case SIGURG:

#endif

#ifdef SIGVTALRM

    case SIGVTALRM:

#endif

#ifdef SIGXCPU

    case SIGXCPU:

#endif

#ifdef SIGXFSZ

    case SIGXFSZ:

#endif

      /* SIGRTMIN and SIGRTMAX need not be compile-time constants.  */

#if 0

# ifdef SIGRTMIN

    case SIGRTMIN:

# endif

# ifdef SIGRTMAX

    case SIGRTMAX:

# endif

#endif

      ;

    }

  return s.a + s.b + s.c + s.e;

}