1  /* Test of conversion of unibyte character to wide character.
       2     Copyright (C) 2008-2022 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>, 2008.  */
      18  
      19  #include <config.h>
      20  
      21  #include <wchar.h>
      22  
      23  #include "signature.h"
      24  SIGNATURE_CHECK (btowc, wint_t, (int));
      25  
      26  #include <locale.h>
      27  #include <stdio.h>
      28  
      29  #include "macros.h"
      30  
      31  int
      32  main (int argc, char *argv[])
      33  {
      34    int c;
      35  
      36    /* configure should already have checked that the locale is supported.  */
      37    if (setlocale (LC_ALL, "") == NULL)
      38      return 1;
      39  
      40    ASSERT (btowc (EOF) == WEOF);
      41  
      42    if (argc > 1)
      43      switch (argv[1][0])
      44        {
      45        case '1':
      46          /* Locale encoding is ISO-8859-1 or ISO-8859-15.  */
      47          for (c = 0; c < 0x80; c++)
      48            ASSERT (btowc (c) == c);
      49          for (c = 0xA0; c < 0x100; c++)
      50            ASSERT (btowc (c) != WEOF);
      51          return 0;
      52  
      53        case '2':
      54          /* Locale encoding is UTF-8.  */
      55          for (c = 0; c < 0x80; c++)
      56            ASSERT (btowc (c) == c);
      57          for (c = 0x80; c < 0x100; c++)
      58            ASSERT (btowc (c) == WEOF);
      59          return 0;
      60        }
      61  
      62    return 1;
      63  }