1  /* Test of <stdlib.h> substitute.
       2     Copyright (C) 2007, 2009-2021 Free Software Foundation, Inc.
       3  
       4     This program is free software: you can redistribute it and/or modify
       5     it under the terms of the GNU General Public License as published by
       6     the Free Software Foundation; either version 3 of the License, or
       7     (at your option) any later version.
       8  
       9     This program is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      12     GNU General Public License for more details.
      13  
      14     You should have received a copy of the GNU General Public License
      15     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
      16  
      17  /* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
      18  
      19  #include <config.h>
      20  
      21  #include <stdlib.h>
      22  
      23  #include "verify.h"
      24  
      25  /* Check that EXIT_SUCCESS is 0, per POSIX.  */
      26  static int exitcode = EXIT_SUCCESS;
      27  #if EXIT_SUCCESS
      28  "oops"
      29  #endif
      30  
      31  /* Check for GNU value (not guaranteed by POSIX, but is guaranteed by
      32     gnulib).  */
      33  #if EXIT_FAILURE != 1
      34  "oops"
      35  #endif
      36  
      37  /* Check that NULL can be passed through varargs as a pointer type,
      38     per POSIX 2008.  */
      39  verify (sizeof NULL == sizeof (void *));
      40  
      41  #if GNULIB_TEST_SYSTEM_POSIX
      42  # include "test-sys_wait.h"
      43  #else
      44  # define test_sys_wait_macros() 0
      45  #endif
      46  
      47  int
      48  main (void)
      49  {
      50    if (test_sys_wait_macros ())
      51      return 1;
      52  
      53    return exitcode;
      54  }