// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#ifndef _LIBCPP_CUCHAR
#define _LIBCPP_CUCHAR

/*
    cuchar synopsis // since C++11

Macros:

    __STDC_UTF_16__
    __STDC_UTF_32__

namespace std {

Types:

  mbstate_t
  size_t

size_t mbrtoc8(char8_t* pc8, const char* s, size_t n, mbstate_t* ps);   // since C++20
size_t c8rtomb(char* s, char8_t c8, mbstate_t* ps);                     // since C++20
size_t mbrtoc16(char16_t* pc16, const char* s, size_t n, mbstate_t* ps);
size_t c16rtomb(char* s, char16_t c16, mbstate_t* ps);
size_t mbrtoc32(char32_t* pc32, const char* s, size_t n, mbstate_t* ps);
size_t c32rtomb(char* s, char32_t c32, mbstate_t* ps);

} // std

*/

#if __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
#  include <__cxx03/cuchar>
#else
#  include <__config>
#  include <__cstddef/size_t.h>

#  include <uchar.h>

#  ifndef _LIBCPP_UCHAR_H
#   error <cuchar> tried including <uchar.h> but didn't find libc++'s <uchar.h> header. \
          This usually means that your header search paths are not configured properly. \
          The header search paths should contain the C++ Standard Library headers before \
          any C Standard Library, and you are probably using compiler flags that make that \
          not be the case.
#  endif

#  if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#    pragma GCC system_header
#  endif

_LIBCPP_BEGIN_NAMESPACE_STD

#  if !defined(_LIBCPP_CXX03_LANG)

using ::mbstate_t _LIBCPP_USING_IF_EXISTS;

#    if _LIBCPP_HAS_C8RTOMB_MBRTOC8
using ::mbrtoc8 _LIBCPP_USING_IF_EXISTS;
using ::c8rtomb _LIBCPP_USING_IF_EXISTS;
#    endif
using ::mbrtoc16 _LIBCPP_USING_IF_EXISTS;
using ::c16rtomb _LIBCPP_USING_IF_EXISTS;
using ::mbrtoc32 _LIBCPP_USING_IF_EXISTS;
using ::c32rtomb _LIBCPP_USING_IF_EXISTS;

#  endif // _LIBCPP_CXX03_LANG

_LIBCPP_END_NAMESPACE_STD

#endif // __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)

#endif // _LIBCPP_CUCHAR
