tests/test-stdlib.c

   1 /* Test of <stdlib.h> substitute.
   2    Copyright (C) 2007, 2009-2020 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 }