mblen_test.c revision 128005 
138032Speter/*-
238032Speter * Copyright (c) 2002-2004 Tim J. Robbins
338032Speter * All rights reserved.
438032Speter *
538032Speter * Redistribution and use in source and binary forms, with or without
638032Speter * modification, are permitted provided that the following conditions
738032Speter * are met:
838032Speter * 1. Redistributions of source code must retain the above copyright
938032Speter *    notice, this list of conditions and the following disclaimer.
1038032Speter * 2. Redistributions in binary form must reproduce the above copyright
1138032Speter *    notice, this list of conditions and the following disclaimer in the
1238032Speter *    documentation and/or other materials provided with the distribution.
1338032Speter *
1438032Speter * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1538032Speter * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1638032Speter * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1738032Speter * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
1838032Speter * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1938032Speter * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2038032Speter * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2138032Speter * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2238032Speter * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2338032Speter * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27/*
28 * Test program for mblen(), as specified by IEEE Std. 1003.1-2001 and
29 * ISO/IEC 9899:1990.
30 *
31 * The function is tested with both the "C" ("POSIX") LC_CTYPE setting and
32 * "ja_JP.eucJP". Other encodings are not tested.
33 */
34
35#include <sys/cdefs.h>
36__FBSDID("$FreeBSD: head/tools/regression/lib/libc/locale/test-mblen.c 128005 2004-04-07 11:02:51Z tjr $");
37
38#include <assert.h>
39#include <limits.h>
40#include <locale.h>
41#include <stdio.h>
42#include <stdlib.h>
43#include <string.h>
44
45int
46main(int argc, char *argv[])
47{
48	size_t len;
49	char buf[MB_LEN_MAX + 1];
50
51	/*
52	 * C/POSIX locale.
53	 */
54
55	assert(MB_CUR_MAX == 1);
56
57	/* No shift states in C locale. */
58	assert(mblen(NULL, 0) == 0);
59
60	/* Null wide character. */
61	memset(buf, 0xcc, sizeof(buf));
62	buf[0] = '\0';
63	assert(mblen(buf, 1) == 0);
64
65	/* Latin letter A. */
66	buf[0] = 'A';
67	assert(mblen(buf, 1) == 1);
68
69	/* Incomplete character sequence. */
70	buf[0] = '\0';
71	assert(mblen(buf, 0) == -1);
72	assert(mblen(NULL, 0) == 0);
73
74	/*
75	 * Japanese (EUC) locale.
76	 */
77
78	assert(strcmp(setlocale(LC_CTYPE, "ja_JP.eucJP"), "ja_JP.eucJP") == 0);
79	assert(MB_CUR_MAX > 1);
80
81	/* No shift states in EUC. */
82	assert(mblen(NULL, 0) == 0);
83
84	/* Null wide character. */
85	memset(buf, 0xcc, sizeof(buf));
86	buf[0] = '\0';
87	assert(mblen(buf, 1) == 0);
88
89	/* Latin letter A. */
90	buf[0] = 'A';
91	assert(mblen(buf, 1) == 1);
92
93	/* Incomplete character sequence. */
94	buf[0] = '\0';
95	assert(mblen(buf, 0) == -1);
96	assert(mblen(NULL, 0) == 0);
97
98	/* Incomplete character sequence (truncated double-byte). */
99	memset(buf, 0xcc, sizeof(buf));
100	buf[0] = 0xa3;
101	buf[1] = 0x00;
102	assert(mblen(buf, 1) == -1);
103	assert(mblen(NULL, 0) == 0);
104
105	/* Same as above, but complete. */
106	buf[1] = 0xc1;
107	assert(mblen(buf, 2) == 2);
108
109	printf("PASS mblen()\n");
110
111	return (0);
112}
113