localedata/tst-mbswcs5.c

   1 /* Test restarting behaviour of wcrtomb.
   2    Copyright (C) 2000-2024 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 <stdio.h>
  20 #include <string.h>
  21 #include <wchar.h>
  22 #include <locale.h>
  23
  24 #define show(expr, nexp, bufexp) \
  25   {                                                                     \
  26     size_t res = expr;                                                  \
  27     printf (#expr " -> %zu", res);                                      \
  28     dst += res;                                                         \
  29     printf (", dst = buf+%td", dst - (char *) buf);                     \
  30     if (res != nexp || dst != (char *) (bufexp))                        \
  31       {                                                                 \
  32         printf (", expected %zu and buf+%td", (size_t) nexp,            \
  33                 (bufexp) - (unsigned char *) buf);                      \
  34         result = 1;                                                     \
  35       }                                                                 \
  36     putc ('\n', stdout);                                                \
  37   }
  38
  39 static int
  40 do_test (void)
  41 {
  42   unsigned char buf[7] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
  43   const unsigned char bufcheck[7] = { 0x25, 0xe2, 0x82, 0xac, 0xce, 0xbb, 0 };
  44   const wchar_t srcbuf[4] = { 0x25, 0x20ac, 0x03bb, 0 };
  45   mbstate_t state;
  46   const wchar_t *src;
  47   char *dst;
  48   int result = 0;
  49   const char *used_locale;
  50
  51   setlocale (LC_CTYPE, "de_DE.UTF-8");
  52   /* Double check.  */
  53   used_locale = setlocale (LC_CTYPE, NULL);
  54   printf ("used locale: \"%s\"\n", used_locale);
  55   result = strcmp (used_locale, "de_DE.UTF-8");
  56
  57   memset (&state, '\0', sizeof (state));
  58
  59   src = srcbuf;
  60   dst = (char *) buf;
  61   show (wcrtomb (dst, *src++, &state), 1, buf + 1);
  62   show (wcrtomb (dst, *src++, &state), 3, buf + 4);
  63   show (wcrtomb (dst, *src++, &state), 2, buf + 6);
  64   show (wcrtomb (dst, *src, &state), 1, buf + 7);
  65
  66   if (memcmp (buf, bufcheck, 7))
  67     {
  68       puts ("wrong results");
  69       result = 1;
  70     }
  71
  72   return result;
  73 }
  74
  75 #define TEST_FUNCTION do_test ()
  76 #include "../test-skeleton.c"