1  /* Test of <stdlib.h> substitute.
       2     Copyright (C) 2007, 2009-2023 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  /* Check that EXIT_SUCCESS is 0, per POSIX.  */
      24  static int exitcode = EXIT_SUCCESS;
      25  #if EXIT_SUCCESS
      26  "oops"
      27  #endif
      28  
      29  /* Check for GNU value (not guaranteed by POSIX, but is guaranteed by
      30     gnulib).  */
      31  #if EXIT_FAILURE != 1
      32  "oops"
      33  #endif
      34  
      35  /* Check that NULL can be passed through varargs as a pointer type,
      36     per POSIX 2008.  */
      37  static_assert (sizeof NULL == sizeof (void *));
      38  
      39  #if GNULIB_TEST_SYSTEM_POSIX
      40  # include "test-sys_wait.h"
      41  #else
      42  # define test_sys_wait_macros() 0
      43  #endif
      44  
      45  int
      46  main (void)
      47  {
      48    /* POSIX:2018 says:
      49       "In the POSIX locale the value of MB_CUR_MAX shall be 1."  */
      50    /* On Android ≥ 5.0, the default locale is the "C.UTF-8" locale, not the
      51       "C" locale.  Furthermore, when you attempt to set the "C" or "POSIX"
      52       locale via setlocale(), what you get is a "C" locale with UTF-8 encoding,
      53       that is, effectively the "C.UTF-8" locale.  */
      54  #ifndef __ANDROID__
      55    if (MB_CUR_MAX != 1)
      56      return 1;
      57  #endif
      58  
      59    if (test_sys_wait_macros ())
      60      return 2;
      61  
      62    return exitcode;
      63  }