1// -*- C++ -*-
2//===----------------------------------------------------------------------===//
3//
4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5// See https://llvm.org/LICENSE.txt for license information.
6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef _LIBCPP_UCHAR_H
11#define _LIBCPP_UCHAR_H
12
13/*
14    uchar.h synopsis // since C++11
15
16Macros:
17
18    __STDC_UTF_16__
19    __STDC_UTF_32__
20
21Types:
22
23  mbstate_t
24  size_t
25
26size_t mbrtoc8(char8_t* pc8, const char* s, size_t n, mbstate_t* ps);     // since C++20
27size_t c8rtomb(char* s, char8_t c8, mbstate_t* ps);                       // since C++20
28size_t mbrtoc16(char16_t* pc16, const char* s, size_t n, mbstate_t* ps);
29size_t c16rtomb(char* s, char16_t c16, mbstate_t* ps);
30size_t mbrtoc32(char32_t* pc32, const char* s, size_t n, mbstate_t* ps);
31size_t c32rtomb(char* s, char32_t c32, mbstate_t* ps);
32
33*/
34
35#include <__config>
36
37#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
38#  pragma GCC system_header
39#endif
40
41#if !defined(_LIBCPP_CXX03_LANG)
42
43// Some platforms don't implement <uchar.h> and we don't want to give a hard
44// error on those platforms. When the platform doesn't provide <uchar.h>, at
45// least include <stddef.h> so we get the declaration for size_t.
46#if __has_include_next(<uchar.h>)
47# include_next <uchar.h>
48#else
49# include <stddef.h>
50#endif
51
52#endif // _LIBCPP_CXX03_LANG
53
54#endif // _LIBCPP_UCHAR_H
55