signal/sigismem.c


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/* Copyright (C) 1991, 1996 Free Software Foundation, Inc.
This file is part of the GNU C Library.

The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.

The GNU C Library 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
Library General Public License for more details.

You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB.  If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA.  */

#include "sigsetops.h"

/* Return 1 if SIGNO is in SET, 0 if not.  */
int
sigismember (set, signo)
     const sigset_t *set;
     int signo;
{
  if (set == NULL || signo <= 0 || signo >= NSIG)
    {
      __set_errno (EINVAL);
      return -1;
    }

  return __sigismember (set, signo);
}