wcsmbs/tst-c32-state.c

   1 /* Test mbrtowc and mbrtoc32 do not share state (bug 23793).
   2    Copyright (C) 2018-2024 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <locale.h>
  20 #include <uchar.h>
  21 #include <wchar.h>
  22 #include <support/check.h>
  23
  24 static int
  25 do_test (void)
  26 {
  27   TEST_VERIFY_EXIT (setlocale (LC_ALL, "de_DE.UTF-8") != NULL);
  28   const char buf[] = "\u00ff";
  29   wchar_t wc = 0;
  30   char32_t c32 = 0;
  31   size_t ret = mbrtowc (&wc, buf, 1, NULL);
  32   TEST_COMPARE (ret, (size_t) -2);
  33   ret = mbrtoc32 (&c32, buf, 1, NULL);
  34   TEST_COMPARE (ret, (size_t) -2);
  35   ret = mbrtowc (&wc, buf + 1, 1, NULL);
  36   TEST_COMPARE (ret, 1);
  37   TEST_COMPARE (wc, 0xff);
  38   ret = mbrtoc32 (&c32, buf + 1, 1, NULL);
  39   TEST_COMPARE (ret, 1);
  40   TEST_COMPARE (c32, 0xff);
  41   return 0;
  42 }
  43
  44 #include <support/test-driver.c>