tests/test-btowc.c

   1 /* Test of conversion of unibyte character to wide character.
   2    Copyright (C) 2008-2021 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>, 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 }