localedata/tst-mbswcs3.c

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