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/* $NetBSD: uchar.h,v 1.6.2.2 2024/10/14 17:20:21 martin Exp $ */
/*-
* Copyright (c) 2024 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* C11, 7.28: Unicode utilities <uchar.h>
* C17, 7.28: Unicode utilities <uchar.h> (unchanged from C11)
* C23, 7.30: Unicode utilities <uchar.h>
*/
#ifndef _UCHAR_H
#define _UCHAR_H
#include <sys/ansi.h>
#include <sys/cdefs.h>
#include <sys/featuretest.h>
/*
* C23 `2. The macro
*
* __STDC_VERSION_UCHAR_H__
*
* is an integer constant expression with a value equivalent
* to 202311L.'
*/
#if defined(_NETBSD_SOURCE) || defined(_ISOC23_SOURCE) || \
__STDC_VERSION__ - 0 >= 202311L
#define __STDC_VERSION_UCHAR_H__ 202311L
#endif
/*
* C11 `2. The types declared are mbstate_t (described in 7.30.1) and
* size_t (described in 7.19);
*
* char16_t
*
* which is an unsigned integer type used for 16-bit
* characters and is the same type as uint_least16_t
* (described in 7.20.1.2); and
*
* char32_t
*
* which is an unsigned integer type used for 32-bit
* characters and is the same type as uint_least32_t (also
* described in 7.20.1.2).'
*/
#ifdef _BSD_MBSTATE_T_
typedef _BSD_MBSTATE_T_ mbstate_t;
#undef _BSD_MBSTATE_T_
#endif
#ifdef _BSD_SIZE_T_
typedef _BSD_SIZE_T_ size_t;
#undef _BSD_SIZE_T_
#endif
/*
* C23 `char8_t...is an unsigned integer type used for 8-bit
* characters and is the same type as unsigned char'
*/
#if defined(_NETBSD_SOURCE) || defined(_ISOC23_SOURCE) || \
__STDC_VERSION__ - 0 >= 202311L
#if __cpp_char8_t - 0 < 201811L
typedef unsigned char char8_t;
#endif
#endif
#if __cplusplus - 0 < 201103L
typedef __UINT_LEAST16_TYPE__ char16_t;
typedef __UINT_LEAST32_TYPE__ char32_t;
#endif
__BEGIN_DECLS
#if defined(_NETBSD_SOURCE) || defined(_ISOC23_SOURCE) || \
__STDC_VERSION__ - 0 >= 202311L
size_t mbrtoc8(char8_t *__restrict, const char *__restrict, size_t,
mbstate_t *__restrict);
size_t c8rtomb(char *__restrict, char8_t, mbstate_t *__restrict);
#endif
size_t mbrtoc16(char16_t *__restrict, const char *__restrict, size_t,
mbstate_t *__restrict);
size_t c16rtomb(char *__restrict, char16_t, mbstate_t *__restrict);
size_t mbrtoc32(char32_t *__restrict, const char *__restrict, size_t,
mbstate_t *__restrict);
size_t c32rtomb(char *__restrict, char32_t, mbstate_t *__restrict);
#ifdef _NETBSD_SOURCE
struct _locale;
size_t mbrtoc8_l(char8_t *__restrict, const char *__restrict, size_t,
mbstate_t *__restrict, struct _locale *__restrict);
size_t c8rtomb_l(char *__restrict, char8_t, mbstate_t *__restrict,
struct _locale *__restrict);
size_t mbrtoc16_l(char16_t *__restrict, const char *__restrict, size_t,
mbstate_t *__restrict, struct _locale *__restrict);
size_t c16rtomb_l(char *__restrict, char16_t, mbstate_t *__restrict,
struct _locale *__restrict);
size_t mbrtoc32_l(char32_t *__restrict, const char *__restrict, size_t,
mbstate_t *__restrict, struct _locale *__restrict);
size_t c32rtomb_l(char *__restrict, char32_t, mbstate_t *__restrict,
struct _locale *__restrict);
#endif
__END_DECLS
#endif /* _UCHAR_H */
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