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/* Copyright (C) 2011-2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
/*
* ISO C11 Standard: 7.28
* Unicode utilities <uchar.h>
*/
#ifndef _UCHAR_H
#define _UCHAR_H 1
#include <features.h>
#define __need_size_t
#include <stddef.h>
#include <bits/types.h>
#include <bits/types/mbstate_t.h>
/* Declare the C23 char8_t typedef in C23 modes, but only if the C++
__cpp_char8_t feature test macro is not defined. */
#if __GLIBC_USE (ISOC23) && !defined __cpp_char8_t
#if __GNUC_PREREQ (10, 0) && defined __cplusplus
/* Suppress the diagnostic regarding char8_t being a keyword in C++20. */
# pragma GCC diagnostic push
# pragma GCC diagnostic ignored "-Wc++20-compat"
#endif
/* Define the 8-bit character type. */
typedef unsigned char char8_t;
#if __GNUC_PREREQ (10, 0) && defined __cplusplus
# pragma GCC diagnostic pop
#endif
#endif
#ifndef __USE_ISOCXX11
/* Define the 16-bit and 32-bit character types. */
typedef __uint_least16_t char16_t;
typedef __uint_least32_t char32_t;
#endif
__BEGIN_DECLS
/* Declare the C23 mbrtoc8() and c8rtomb() functions in C23 modes or if
the C++ __cpp_char8_t feature test macro is defined. */
#if __GLIBC_USE (ISOC23) || defined __cpp_char8_t
/* Write char8_t representation of multibyte character pointed
to by S to PC8. */
extern size_t mbrtoc8 (char8_t *__restrict __pc8,
const char *__restrict __s, size_t __n,
mbstate_t *__restrict __p) __THROW;
/* Write multibyte representation of char8_t C8 to S. */
extern size_t c8rtomb (char *__restrict __s, char8_t __c8,
mbstate_t *__restrict __ps) __THROW;
#endif
/* Write char16_t representation of multibyte character pointed
to by S to PC16. */
extern size_t mbrtoc16 (char16_t *__restrict __pc16,
const char *__restrict __s, size_t __n,
mbstate_t *__restrict __p) __THROW;
/* Write multibyte representation of char16_t C16 to S. */
extern size_t c16rtomb (char *__restrict __s, char16_t __c16,
mbstate_t *__restrict __ps) __THROW;
/* Write char32_t representation of multibyte character pointed
to by S to PC32. */
extern size_t mbrtoc32 (char32_t *__restrict __pc32,
const char *__restrict __s, size_t __n,
mbstate_t *__restrict __p) __THROW;
/* Write multibyte representation of char32_t C32 to S. */
extern size_t c32rtomb (char *__restrict __s, char32_t __c32,
mbstate_t *__restrict __ps) __THROW;
__END_DECLS
#endif /* uchar.h */
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