freebsd-dev/tools/regression/lib/libc/locale/test-mblen.c
Tim J. Robbins 3a8bdd99cb Reset internal conversion state after triggering conversion errors;
the state is undefined according to the standards, and our undefined
behaviour has changed.
2004-04-07 11:02:51 +00:00

113 lines
3.0 KiB
C

/*-
* Copyright (c) 2002-2004 Tim J. Robbins
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* Test program for mblen(), as specified by IEEE Std. 1003.1-2001 and
* ISO/IEC 9899:1990.
*
* The function is tested with both the "C" ("POSIX") LC_CTYPE setting and
* "ja_JP.eucJP". Other encodings are not tested.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <assert.h>
#include <limits.h>
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int
main(int argc, char *argv[])
{
size_t len;
char buf[MB_LEN_MAX + 1];
/*
* C/POSIX locale.
*/
assert(MB_CUR_MAX == 1);
/* No shift states in C locale. */
assert(mblen(NULL, 0) == 0);
/* Null wide character. */
memset(buf, 0xcc, sizeof(buf));
buf[0] = '\0';
assert(mblen(buf, 1) == 0);
/* Latin letter A. */
buf[0] = 'A';
assert(mblen(buf, 1) == 1);
/* Incomplete character sequence. */
buf[0] = '\0';
assert(mblen(buf, 0) == -1);
assert(mblen(NULL, 0) == 0);
/*
* Japanese (EUC) locale.
*/
assert(strcmp(setlocale(LC_CTYPE, "ja_JP.eucJP"), "ja_JP.eucJP") == 0);
assert(MB_CUR_MAX > 1);
/* No shift states in EUC. */
assert(mblen(NULL, 0) == 0);
/* Null wide character. */
memset(buf, 0xcc, sizeof(buf));
buf[0] = '\0';
assert(mblen(buf, 1) == 0);
/* Latin letter A. */
buf[0] = 'A';
assert(mblen(buf, 1) == 1);
/* Incomplete character sequence. */
buf[0] = '\0';
assert(mblen(buf, 0) == -1);
assert(mblen(NULL, 0) == 0);
/* Incomplete character sequence (truncated double-byte). */
memset(buf, 0xcc, sizeof(buf));
buf[0] = 0xa3;
buf[1] = 0x00;
assert(mblen(buf, 1) == -1);
assert(mblen(NULL, 0) == 0);
/* Same as above, but complete. */
buf[1] = 0xc1;
assert(mblen(buf, 2) == 2);
printf("PASS mblen()\n");
return (0);
}