1/*-
2 * Copyright (c) 2002-2004 Tim J. Robbins
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27/*
28 * Test program for mbtowc(), 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("$FreeBSD$");
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	wchar_t wc;
50	char buf[MB_LEN_MAX + 1];
51
52	/*
53	 * C/POSIX locale.
54	 */
55
56	printf("1..1\n");
57
58	assert(MB_CUR_MAX == 1);
59
60	/* No shift states in C locale. */
61	assert(mbtowc(NULL, NULL, 0) == 0);
62
63	/* Null wide character. */
64	wc = 0xcccc;
65	memset(buf, 0, sizeof(buf));
66	assert(mbtowc(&wc, buf, 1) == 0);
67	assert(wc == 0);
68
69	/* Latin letter A. */
70	buf[0] = 'A';
71	assert(mbtowc(&wc, buf, 1) == 1);
72	assert(wc == L'A');
73
74	/* Incomplete character sequence. */
75	wc = L'z';
76	buf[0] = '\0';
77	assert(mbtowc(&wc, buf, 0) == -1);
78	assert(wc == L'z');
79	assert(mbtowc(NULL, NULL, 0) == 0);
80
81	/*
82	 * Japanese (EUC) locale.
83	 */
84
85	assert(strcmp(setlocale(LC_CTYPE, "ja_JP.eucJP"), "ja_JP.eucJP") == 0);
86	assert(MB_CUR_MAX > 1);
87
88	/* Null wide character */
89	memset(buf, 0xcc, sizeof(buf));
90	buf[0] = 0;
91	wc = 0xcccc;
92	assert(mbtowc(&wc, buf, 1) == 0);
93	assert(wc == 0);
94
95	/* Latin letter A. */
96	buf[0] = 'A';
97	assert(mbtowc(&wc, buf, 1) == 1);
98	assert(wc == L'A');
99
100	/* Incomplete character sequence (zero length). */
101	wc = L'z';
102	buf[0] = '\0';
103	assert(mbtowc(&wc, buf, 0) == -1);
104	assert(wc == L'z');
105	assert(mbtowc(NULL, NULL, 0) == 0);
106
107	/* Incomplete character sequence (truncated double-byte). */
108	memset(buf, 0xcc, sizeof(buf));
109	buf[0] = 0xa3;
110	buf[1] = 0x00;
111	wc = L'z';
112	assert(mbtowc(&wc, buf, 1) == -1);
113	assert(wc == L'z');
114	assert(mbtowc(NULL, NULL, 0) == 0);
115
116	/* Same as above, but complete. */
117	buf[1] = 0xc1;
118	assert(mbtowc(&wc, buf, 2) == 2);
119	assert(wc == 0xa3c1);
120
121	printf("ok 1 - mbtowc()\n");
122
123	return (0);
124}
125