localedata/tst-mbswcs5.c

   1 /* Test restarting behaviour of wcrtomb.
   2    Copyright (C) 2000-2020 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Bruno Haible <haible@ilog.fr>.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, see
  18    <https://www.gnu.org/licenses/>.  */
  19
  20 #include <stdio.h>
  21 #include <string.h>
  22 #include <wchar.h>
  23 #include <locale.h>
  24
  25 #define show(expr, nexp, bufexp) \
  26   {                                                                     \
  27     size_t res = expr;                                                  \
  28     printf (#expr " -> %zu", res);                                      \
  29     dst += res;                                                         \
  30     printf (", dst = buf+%td", dst - (char *) buf);                     \
  31     if (res != nexp || dst != (char *) (bufexp))                        \
  32       {                                                                 \
  33         printf (", expected %zu and buf+%td", (size_t) nexp,            \
  34                 (bufexp) - (unsigned char *) buf);                      \
  35         result = 1;                                                     \
  36       }                                                                 \
  37     putc ('\n', stdout);                                                \
  38   }
  39
  40 static int
  41 do_test (void)
  42 {
  43   unsigned char buf[7] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
  44   const unsigned char bufcheck[7] = { 0x25, 0xe2, 0x82, 0xac, 0xce, 0xbb, 0 };
  45   const wchar_t srcbuf[4] = { 0x25, 0x20ac, 0x03bb, 0 };
  46   mbstate_t state;
  47   const wchar_t *src;
  48   char *dst;
  49   int result = 0;
  50   const char *used_locale;
  51
  52   setlocale (LC_CTYPE, "de_DE.UTF-8");
  53   /* Double check.  */
  54   used_locale = setlocale (LC_CTYPE, NULL);
  55   printf ("used locale: \"%s\"\n", used_locale);
  56   result = strcmp (used_locale, "de_DE.UTF-8");
  57
  58   memset (&state, '\0', sizeof (state));
  59
  60   src = srcbuf;
  61   dst = (char *) buf;
  62   show (wcrtomb (dst, *src++, &state), 1, buf + 1);
  63   show (wcrtomb (dst, *src++, &state), 3, buf + 4);
  64   show (wcrtomb (dst, *src++, &state), 2, buf + 6);
  65   show (wcrtomb (dst, *src, &state), 1, buf + 7);
  66
  67   if (memcmp (buf, bufcheck, 7))
  68     {
  69       puts ("wrong results");
  70       result = 1;
  71     }
  72
  73   return result;
  74 }
  75
  76 #define TEST_FUNCTION do_test ()
  77 #include "../test-skeleton.c"