1  /* Test of setting the current locale.
       2     Copyright (C) 2011-2023 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  #include <config.h>
      18  
      19  #include <locale.h>
      20  
      21  #include "signature.h"
      22  SIGNATURE_CHECK (setlocale, char *, (int, const char *));
      23  
      24  #include <stdlib.h>
      25  #include <string.h>
      26  
      27  #include "macros.h"
      28  
      29  int
      30  main (int argc, char *argv[])
      31  {
      32    char *name1;
      33    char *name2;
      34  
      35    /* Try to set the locale by implicitly looking at the LC_ALL environment
      36       variable.
      37       configure should already have checked that the locale is supported.  */
      38    if (setlocale (LC_ALL, "") == NULL)
      39      return 1;
      40  
      41    name1 = strdup (setlocale (LC_ALL, NULL));
      42  
      43    /* Reset the locale.  */
      44    if (setlocale (LC_ALL, "C") == NULL)
      45      return 1;
      46  
      47    /* Try to set the locale by explicitly looking at the LC_ALL environment
      48       variable.
      49       configure should already have checked that the locale is supported.  */
      50    if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL)
      51      return 1;
      52  
      53    name2 = strdup (setlocale (LC_ALL, NULL));
      54  
      55    ASSERT (name1);
      56    ASSERT (name2);
      57  
      58    /* Test that the two results are the same.  */
      59    ASSERT (strcmp (name1, name2) == 0);
      60    free (name1);
      61    free (name2);
      62  
      63    return 0;
      64  }