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94 lines
3.2 KiB
94 lines
3.2 KiB
/*
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* Copyright (C) 2014 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#pragma once
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/**
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* @file uchar.h
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* @brief Unicode functions.
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*/
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#include <stddef.h>
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#include <sys/cdefs.h>
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#include <bits/mbstate_t.h>
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__BEGIN_DECLS
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#if !defined(__cplusplus)
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/** The UTF-16 character type. */
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typedef __CHAR16_TYPE__ char16_t;
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/** The UTF-32 character type. */
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typedef __CHAR32_TYPE__ char32_t;
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#endif
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/** On Android, char16_t is UTF-16. */
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#define __STD_UTF_16__ 1
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/** On Android, char32_t is UTF-32. */
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#define __STD_UTF_32__ 1
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/**
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* [c16rtomb(3)](http://man7.org/linux/man-pages/man3/c16rtomb.3.html) converts a single UTF-16
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* character to UTF-8.
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*
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* Returns the number of bytes written to `__buf` on success, and returns -1 and sets `errno`
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* on failure.
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*
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* Available since API level 21.
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*/
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size_t c16rtomb(char* _Nullable __buf, char16_t __ch16, mbstate_t* _Nullable __ps) __INTRODUCED_IN(21);
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/**
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* [c32rtomb(3)](http://man7.org/linux/man-pages/man3/c32rtomb.3.html) converts a single UTF-32
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* character to UTF-8.
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*
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* Returns the number of bytes written to `__buf` on success, and returns -1 and sets `errno`
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* on failure.
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*
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* Available since API level 21.
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*/
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size_t c32rtomb(char* _Nullable __buf, char32_t __ch32, mbstate_t* _Nullable __ps) __INTRODUCED_IN(21);
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/**
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* [mbrtoc16(3)](http://man7.org/linux/man-pages/man3/mbrtoc16.3.html) converts the next UTF-8
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* sequence to a UTF-16 code point.
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*
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* Available since API level 21.
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*/
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size_t mbrtoc16(char16_t* _Nullable __ch16, const char* _Nullable __s, size_t __n, mbstate_t* _Nullable __ps) __INTRODUCED_IN(21);
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/**
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* [mbrtoc32(3)](http://man7.org/linux/man-pages/man3/mbrtoc32.3.html) converts the next UTF-8
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* sequence to a UTF-32 code point.
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*
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* Available since API level 21.
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*/
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size_t mbrtoc32(char32_t* _Nullable __ch32, const char* _Nullable __s, size_t __n, mbstate_t* _Nullable __ps) __INTRODUCED_IN(21);
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__END_DECLS
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