source: mainline/common/include/uchar.h

Last change on this file was 696b405, checked in by Jiří Zárevúcky <zarevucky.jiri@…>, 3 months ago

Implement standard character conversion functions from <uchar.h> and <wchar.h>

These are more somewhat more flexible than the existing functions in <str.h> since
they can process incomplete stream and save unfinished character for next call.

  • Property mode set to 100644
File size: 2.3 KB
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1/*
2 * Copyright (c) 2025 Jiří Zárevúcky
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 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup libc
30 * @{
31 */
32/** @file
33 */
34
35#ifndef _LIBC_UCHAR_H_
36#define _LIBC_UCHAR_H_
37
38#include <_bits/mbstate_t.h>
39#include <_bits/size_t.h>
40#include <_bits/uchar.h>
41#include <stdint.h>
42
43size_t mbrtoc8(char8_t *__restrict pc8, const char *__restrict s, size_t n,
44 mbstate_t *__restrict ps);
45size_t c8rtomb(char *__restrict s, char8_t c8, mbstate_t *__restrict ps);
46size_t mbrtoc16(char16_t *__restrict pc16, const char *__restrict s, size_t n,
47 mbstate_t *__restrict ps);
48size_t c16rtomb(char *__restrict s, char16_t c16, mbstate_t *__restrict ps);
49size_t mbrtoc32(char32_t *__restrict pc32, const char *__restrict s, size_t n,
50 mbstate_t *__restrict ps);
51size_t c32rtomb(char *__restrict s, char32_t c32, mbstate_t *__restrict ps);
52
53#ifdef _HELENOS_SOURCE
54#define UCHAR_ILSEQ ((size_t) -1)
55#define UCHAR_INCOMPLETE ((size_t) -2)
56#define UCHAR_CONTINUED ((size_t) -3)
57#endif
58
59#endif
60
61/** @}
62 */
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