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 
16 Macros:
17 
18     __STDC_UTF_16__
19     __STDC_UTF_32__
20 
21 Types:
22 
23   mbstate_t
24   size_t
25 
26 size_t mbrtoc16(char16_t* pc16, const char* s, size_t n, mbstate_t* ps);
27 size_t c16rtomb(char* s, char16_t c16, mbstate_t* ps);
28 size_t mbrtoc32(char32_t* pc32, const char* s, size_t n, mbstate_t* ps);
29 size_t c32rtomb(char* s, char32_t c32, mbstate_t* ps);
30 
31 */
32 
33 #include <__config>
34 
35 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
36 #  pragma GCC system_header
37 #endif
38 
39 #if !defined(_LIBCPP_CXX03_LANG)
40 
41 // Some platforms don't implement <uchar.h> and we don't want to give a hard
42 // error on those platforms. When the platform doesn't provide <uchar.h>, at
43 // least include <stddef.h> so we get the declaration for size_t.
44 #if __has_include_next(<uchar.h>)
45 # include_next <uchar.h>
46 #else
47 # include <stddef.h>
48 #endif
49 
50 #endif // _LIBCPP_CXX03_LANG
51 
52 #endif // _LIBCPP_UCHAR_H
53