1/* Copyright (C) 2011-2017 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#define __need_mbstate_t
31#include <wchar.h>
32
33#ifndef __mbstate_t_defined
34__BEGIN_NAMESPACE_C99
35/* Public type. */
36typedef __mbstate_t mbstate_t;
37__END_NAMESPACE_C99
38# define __mbstate_t_defined 1
39#endif
40
41
42#if defined __GNUC__ && !defined __USE_ISOCXX11
43/* Define the 16-bit and 32-bit character types. Use the information
44 provided by the compiler. */
45# if !defined __CHAR16_TYPE__ || !defined __CHAR32_TYPE__
46# if defined __STDC_VERSION__ && __STDC_VERSION__ < 201000L
47# error "<uchar.h> requires ISO C11 mode"
48# else
49# error "definitions of __CHAR16_TYPE__ and/or __CHAR32_TYPE__ missing"
50# endif
51# endif
52typedef __CHAR16_TYPE__ char16_t;
53typedef __CHAR32_TYPE__ char32_t;
54#endif
55
56
57__BEGIN_DECLS
58
59/* Write char16_t representation of multibyte character pointed
60 to by S to PC16. */
61extern size_t mbrtoc16 (char16_t *__restrict __pc16,
62 const char *__restrict __s, size_t __n,
63 mbstate_t *__restrict __p) __THROW;
64
65/* Write multibyte representation of char16_t C16 to S. */
66extern size_t c16rtomb (char *__restrict __s, char16_t __c16,
67 mbstate_t *__restrict __ps) __THROW;
68
69
70
71/* Write char32_t representation of multibyte character pointed
72 to by S to PC32. */
73extern size_t mbrtoc32 (char32_t *__restrict __pc32,
74 const char *__restrict __s, size_t __n,
75 mbstate_t *__restrict __p) __THROW;
76
77/* Write multibyte representation of char32_t C32 to S. */
78extern size_t c32rtomb (char *__restrict __s, char32_t __c32,
79 mbstate_t *__restrict __ps) __THROW;
80
81__END_DECLS
82
83#endif /* uchar.h */
84