text: /* Test raising a signal.
     Copyright (C) 2011-2016 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);
  }
  