localedata/tst-mbswcs4.c

   1 /* Test restarting behaviour of mbsrtowcs.
   2    Copyright (C) 2000 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 Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    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    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20 #include <stdio.h>
  21 #include <string.h>
  22 #include <wchar.h>
  23 #include <locale.h>
  24
  25 #define show(expr, nexp, wcexp, end) \
  26   n = expr;                                                             \
  27   printf (#expr " -> %Zd", n);                                          \
  28   printf (", wc = %lu, src = buf+%d", (unsigned long int) wc,           \
  29           src - (const char *) buf);                                    \
  30   if (n != (size_t) nexp || wc != wcexp || src != (const char *) (end)) \
  31     {                                                                   \
  32       printf (", expected %Zd and %lu and buf+%d", nexp,                \
  33               (unsigned long int) wcexp, (end) - buf);                  \
  34       result = 1;                                                       \
  35     }                                                                   \
  36   putc ('\n', stdout)
  37
  38 int
  39 main (void)
  40 {
  41   unsigned char buf[6] = { 0x25,  0xe2, 0x82, 0xac,  0xce, 0xbb };
  42   mbstate_t state;
  43   const char *src;
  44   wchar_t wc = 42;
  45   size_t n;
  46   int result = 0;
  47   const char *used_locale;
  48
  49   setlocale (LC_CTYPE,"de_DE.UTF-8");
  50   /* Double check.  */
  51   used_locale = setlocale (LC_CTYPE, NULL);
  52   printf ("used locale: \"%s\"\n", used_locale);
  53   result = strcmp (used_locale, "de_DE.UTF-8");
  54
  55   memset (&state, '\0', sizeof (state));
  56
  57   src = (const char *) buf;
  58   show (mbsrtowcs (&wc, &src, 1, &state), 1, 37, buf + 1);
  59   show (mbsrtowcs (&wc, &src, 1, &state), 1, 8364, buf + 4);
  60   show (mbsrtowcs (&wc, &src, 1, &state), 1, 955, buf + 6);
  61
  62   return result;
  63 }