/*
* Copyright ( C ) 2014 The Android Open Source Project
* All rights reserved .
*
* Redistribution and use in source and binary forms , with or without
* modification , are permitted provided that the following conditions
* are met :
* * Redistributions of source code must retain the above copyright
* notice , this list of conditions and the following disclaimer .
* * 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 COPYRIGHT HOLDERS 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
* COPYRIGHT OWNER 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 .
*/
#pragma once
/**
* @ file uchar . h
* @ brief Unicode functions .
*/
#include <sys/cdefs.h>
#include <stddef.h>
#include <bits/bionic_multibyte_result.h>
#include <bits/mbstate_t.h>
__BEGIN_DECLS
#if !defined (__cplusplus)
/** The UTF-16 character type. */
typedef __CHAR16_TYPE__ char16_t;
/** The UTF-32 character type. */
typedef __CHAR32_TYPE__ char32_t;
#endif
/** On Android, char16_t is UTF-16. */
#define __STD_UTF_16__ 1
/** On Android, char32_t is UTF-32. */
#define __STD_UTF_32__ 1
/**
* [ c16rtomb ( 3 ) ] ( https : //man7.org/linux/man-pages/man3/c16rtomb.3.html) converts a single UTF-16
* character to UTF - 8 .
*
* Returns the number of bytes written to ` _ _ buf ` on success , and returns - 1 and sets ` errno `
* on failure .
*/
size_t c16rtomb(char * _Nullable __buf, char16_t __ch16, mbstate_t* _Nullable __ps);
/**
* [ c32rtomb ( 3 ) ] ( https : //man7.org/linux/man-pages/man3/c32rtomb.3.html) converts a single UTF-32
* character to UTF - 8 .
*
* Returns the number of bytes written to ` _ _ buf ` on success , and returns - 1 and sets ` errno `
* on failure .
*/
size_t c32rtomb(char * _Nullable __buf, char32_t __ch32, mbstate_t* _Nullable __ps);
/**
* [ mbrtoc16 ( 3 ) ] ( https : //man7.org/linux/man-pages/man3/mbrtoc16.3.html) converts the next UTF-8
* sequence to a UTF - 16 code point .
*/
size_t mbrtoc16(char16_t* _Nullable __ch16, const char * _Nullable __s, size_t __n, mbstate_t* _Nullable __ps);
/**
* [ mbrtoc32 ( 3 ) ] ( https : //man7.org/linux/man-pages/man3/mbrtoc32.3.html) converts the next UTF-8
* sequence to a UTF - 32 code point .
*/
size_t mbrtoc32(char32_t* _Nullable __ch32, const char * _Nullable __s, size_t __n, mbstate_t* _Nullable __ps);
__END_DECLS
Messung V0.5 in Prozent C=87 H=96 G=91
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(vorverarbeitet am 2026-06-28)
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