1 /*
2 * This file and its contents are supplied under the terms of the
3 * Common Development and Distribution License ("CDDL"), version 1.0.
4 * You may only use this file in accordance with the terms of version
5 * 1.0 of the CDDL.
6 *
7 * A full copy of the text of the CDDL should have accompanied this
8 * source. A copy of the CDDL is also available via the Internet at
9 * http://www.illumos.org/license/CDDL.
10 */
11
12 /*
13 * Copyright 2020 Robert Mustacchi
14 */
15
16 /*
17 * C11 mbrtoc32(3C) support.
18 *
19 * The char32_t type is designed to represent UTF-32. Conveniently, the wchar_t
20 * is as well. In this case, we can just pass this directly to mbrtowc_l().
21 */
22
23 #include <locale.h>
24 #include <wchar.h>
25 #include <xlocale.h>
26 #include <uchar.h>
27
28 static mbstate_t mbrtoc32_state;
29
30 size_t
mbrtoc32(char32_t * restrict pc32,const char * restrict str,size_t len,mbstate_t * restrict ps)31 mbrtoc32(char32_t *restrict pc32, const char *restrict str, size_t len,
32 mbstate_t *restrict ps)
33 {
34 if (ps == NULL) {
35 ps = &mbrtoc32_state;
36 }
37
38 if (str == NULL) {
39 pc32 = NULL;
40 str = "";
41 len = 1;
42 }
43
44 return (mbrtowc_l((wchar_t *)pc32, str, len, ps,
45 uselocale((locale_t)0)));
46 }
47