1/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
17
18/*
19 * ISO C11 Standard: 7.28
20 * Unicode utilities <uchar.h>
21 */
22
23#ifndef _UCHAR_H
24#define _UCHAR_H 1
25
26#include <features.h>
27
28#define __need_size_t
29#include <stddef.h>
30
31#include <bits/types/mbstate_t.h>
32
33#if defined __GNUC__ && !defined __USE_ISOCXX11
34/* Define the 16-bit and 32-bit character types. Use the information
35 provided by the compiler. */
36# if !defined __CHAR16_TYPE__ || !defined __CHAR32_TYPE__
37# if defined __STDC_VERSION__ && __STDC_VERSION__ < 201000L
38# error "<uchar.h> requires ISO C11 mode"
39# else
40# error "definitions of __CHAR16_TYPE__ and/or __CHAR32_TYPE__ missing"
41# endif
42# endif
43typedef __CHAR16_TYPE__ char16_t;
44typedef __CHAR32_TYPE__ char32_t;
45#endif
46
47
48__BEGIN_DECLS
49
50/* Write char16_t representation of multibyte character pointed
51 to by S to PC16. */
52extern size_t mbrtoc16 (char16_t *__restrict __pc16,
53 const char *__restrict __s, size_t __n,
54 mbstate_t *__restrict __p) __THROW;
55
56/* Write multibyte representation of char16_t C16 to S. */
57extern size_t c16rtomb (char *__restrict __s, char16_t __c16,
58 mbstate_t *__restrict __ps) __THROW;
59
60
61
62/* Write char32_t representation of multibyte character pointed
63 to by S to PC32. */
64extern size_t mbrtoc32 (char32_t *__restrict __pc32,
65 const char *__restrict __s, size_t __n,
66 mbstate_t *__restrict __p) __THROW;
67
68/* Write multibyte representation of char32_t C32 to S. */
69extern size_t c32rtomb (char *__restrict __s, char32_t __c32,
70 mbstate_t *__restrict __ps) __THROW;
71
72__END_DECLS
73
74#endif /* uchar.h */
75