glibc/localedata/tst-mbswcs4.c

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/* Test restarting behaviour of mbsrtowcs.
Copyright (C) 2000-2013 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <stdio.h>
#include <string.h>
#include <wchar.h>
#include <locale.h>
#define show(expr, nexp, wcexp, end) \
n = expr; \
printf (#expr " -> %Zd", n); \
printf (", wc = %lu, src = buf+%d", (unsigned long int) wc, \
src - (const char *) buf); \
if (n != (size_t) nexp || wc != wcexp || src != (const char *) (end)) \
{ \
printf (", expected %Zd and %lu and buf+%d", nexp, \
(unsigned long int) wcexp, (end) - buf); \
result = 1; \
} \
putc ('\n', stdout)
int
main (void)
{
unsigned char buf[6] = { 0x25, 0xe2, 0x82, 0xac, 0xce, 0xbb };
mbstate_t state;
const char *src;
wchar_t wc = 42;
size_t n;
int result = 0;
const char *used_locale;
setlocale (LC_CTYPE,"de_DE.UTF-8");
/* Double check. */
used_locale = setlocale (LC_CTYPE, NULL);
printf ("used locale: \"%s\"\n", used_locale);
result = strcmp (used_locale, "de_DE.UTF-8");
memset (&state, '\0', sizeof (state));
src = (const char *) buf;
show (mbsrtowcs (&wc, &src, 1, &state), 1, 37, buf + 1);
show (mbsrtowcs (&wc, &src, 1, &state), 1, 8364, buf + 4);
show (mbsrtowcs (&wc, &src, 1, &state), 1, 955, buf + 6);
return result;
}