localedata/tst-mbswcs1.c

   1 /* Test restarting behaviour of mbrtowc.
   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, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21 #include <stdio.h>
  22 #include <string.h>
  23 #include <wchar.h>
  24 #include <locale.h>
  25
  26 #define show(expr, nexp, wcexp) \
  27   n = expr;                                                               \
  28   printf (#expr " -> %Zd", n);                                            \
  29   printf (", wc = %lu", (unsigned long int) wc);                          \
  30   if (n != (size_t) nexp || wc != wcexp)                                  \
  31     {                                                                     \
  32       printf (", expected %Zd and %lu", nexp, (unsigned long int) wcexp); \
  33       result = 1;                                                         \
  34     }                                                                     \
  35   putc ('\n', stdout)
  36
  37 int
  38 main (void)
  39 {
  40   unsigned char buf[6] = { 0x25,  0xe2, 0x82, 0xac,  0xce, 0xbb };
  41   mbstate_t state;
  42   wchar_t wc = 42;
  43   size_t n;
  44   int result = 0;
  45   const char *used_locale;
  46
  47   setlocale (LC_CTYPE, "de_DE.UTF-8");
  48   /* Double check.  */
  49   used_locale = setlocale (LC_CTYPE, NULL);
  50   printf ("used locale: \"%s\"\n", used_locale);
  51   result = strcmp (used_locale, "de_DE.UTF-8");
  52
  53   memset (&state, '\0', sizeof (state));
  54
  55   show (mbrtowc (&wc, buf + 0, 1, &state), 1, 37);
  56   show (mbrtowc (&wc, buf + 1, 1, &state), -2, 37);
  57   show (mbrtowc (&wc, buf + 2, 3, &state), 2, 8364);
  58   show (mbrtowc (&wc, buf + 4, 1, &state), -2, 8364);
  59   show (mbrtowc (&wc, buf + 5, 1, &state), 1, 955);
  60   show (mbrtowc (&wc, buf + 5, 1, &state), -1, 955);
  61
  62   return result;
  63 }