kc3-lang/gnulib/tests/test-btoc32.c

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• Hash : 7b089321
  Author :
  Date : 2025-01-01T09:24:36
  

  maint: run 'make update-copyright'
  

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• tests/test-btoc32.c

• /* Test of conversion of unibyte character to 32-bit wide character.
     Copyright (C) 2008-2025 Free Software Foundation, Inc.
  
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation, either version 3 of the License, or
     (at your option) any later version.
  
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  
  /* Written by Bruno Haible <bruno@clisp.org>, 2008.  */
  
  #include <config.h>
  
  #include <uchar.h>
  
  #include "signature.h"
  SIGNATURE_CHECK (btoc32, wint_t, (int));
  
  #include <locale.h>
  #include <stdio.h>
  #include <wchar.h>
  
  #include "macros.h"
  
  int
  main (int argc, char *argv[])
  {
    int c;
  
    /* configure should already have checked that the locale is supported.  */
    if (setlocale (LC_ALL, "") == NULL)
      return 1;
  
    ASSERT (btoc32 (EOF) == WEOF);
  
  #ifdef __ANDROID__
    /* On Android ≥ 5.0, the default locale is the "C.UTF-8" locale, not the
       "C" locale.  Furthermore, when you attempt to set the "C" or "POSIX"
       locale via setlocale(), what you get is a "C" locale with UTF-8 encoding,
       that is, effectively the "C.UTF-8" locale.  */
    if (argc > 1 && strcmp (argv[1], "1") == 0 && MB_CUR_MAX > 1)
      argv[1] = "3";
  #endif
  
    if (argc > 1)
      switch (argv[1][0])
        {
        case '1':
          /* C or POSIX locale.  */
          for (c = 0; c < 0x100; c++)
            if (c != 0)
              {
                /* We are testing all nonnull bytes.  */
                wint_t wc = btoc32 (c);
                /* POSIX:2018 says regarding btowc: "In the POSIX locale, btowc()
                   shall not return WEOF if c has a value in the range 0 to 255
                   inclusive."  It is reasonable to expect btoc32 to behave in
                   the same way.  */
                if (c < 0x80)
                  /* c is an ASCII character.  */
                  ASSERT (wc == c);
                else
                  /* On most platforms, the bytes 0x80..0xFF map to U+0080..U+00FF.
                     But on musl libc, the bytes 0x80..0xFF map to U+DF80..U+DFFF.  */
                  ASSERT (wc == c || wc == 0xDF00 + c);
              }
          return test_exit_status;
  
        case '2':
          /* Locale encoding is ISO-8859-1 or ISO-8859-15.  */
          for (c = 0; c < 0x80; c++)
            ASSERT (btoc32 (c) == c);
          for (c = 0xA0; c < 0x100; c++)
            ASSERT (btoc32 (c) != WEOF);
          return test_exit_status;
  
        case '3':
          /* Locale encoding is UTF-8.  */
          for (c = 0; c < 0x80; c++)
            ASSERT (btoc32 (c) == c);
          for (c = 0x80; c < 0x100; c++)
            ASSERT (btoc32 (c) == WEOF);
          return test_exit_status;
        }
  
    return 1;
  }
  

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