localedata/tst-mbswcs2.c

   1 /* Test restarting behaviour of mbsnrtowcs.
   2    Copyright (C) 2000-2019 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, wcexp, end) \
  26   n = expr;                                                             \
  27   printf (#expr " -> %zu", n);                                          \
  28   printf (", wc = %lu, src = buf+%td", (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 %zu and %lu and buf+%td", (size_t) nexp,      \
  33               (unsigned long int) wcexp, (end) - buf);                  \
  34       result = 1;                                                       \
  35     }                                                                   \
  36   putc ('\n', stdout)
  37
  38 static int
  39 do_test (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 (mbsnrtowcs (&wc, &src, 1, 1, &state), 1, 37, buf + 1);
  59   show (mbsnrtowcs (&wc, &src, 3, 1, &state), 1, 8364, buf + 4);
  60   show (mbsnrtowcs (&wc, &src, 1, 1, &state), 0, 8364, buf + 5);
  61   show (mbsnrtowcs (&wc, &src, 1, 1, &state), 1, 955, buf + 6);
  62
  63   return result;
  64 }
  65
  66 #define TEST_FUNCTION do_test ()
  67 #include "../test-skeleton.c"