// -*- 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_CWCHAR

#define _LIBCPP_CWCHAR

/*

    cwchar synopsis

Macros:

    NULL

    WCHAR_MAX

    WCHAR_MIN

    WEOF

namespace std

{

Types:

    mbstate_t

    size_t

    tm

    wint_t

int fwprintf(FILE* restrict stream, const wchar_t* restrict format, ...);

int fwscanf(FILE* restrict stream, const wchar_t* restrict format, ...);

int swprintf(wchar_t* restrict s, size_t n, const wchar_t* restrict format, ...);

int swscanf(const wchar_t* restrict s, const wchar_t* restrict format, ...);

int vfwprintf(FILE* restrict stream, const wchar_t* restrict format, va_list arg);

int vfwscanf(FILE* restrict stream, const wchar_t* restrict format, va_list arg);  // C99

int vswprintf(wchar_t* restrict s, size_t n, const wchar_t* restrict format, va_list arg);

int vswscanf(const wchar_t* restrict s, const wchar_t* restrict format, va_list arg);  // C99

int vwprintf(const wchar_t* restrict format, va_list arg);

int vwscanf(const wchar_t* restrict format, va_list arg);  // C99

int wprintf(const wchar_t* restrict format, ...);

int wscanf(const wchar_t* restrict format, ...);

wint_t fgetwc(FILE* stream);

wchar_t* fgetws(wchar_t* restrict s, int n, FILE* restrict stream);

wint_t fputwc(wchar_t c, FILE* stream);

int fputws(const wchar_t* restrict s, FILE* restrict stream);

int fwide(FILE* stream, int mode);

wint_t getwc(FILE* stream);

wint_t getwchar();

wint_t putwc(wchar_t c, FILE* stream);

wint_t putwchar(wchar_t c);

wint_t ungetwc(wint_t c, FILE* stream);

double wcstod(const wchar_t* restrict nptr, wchar_t** restrict endptr);

float wcstof(const wchar_t* restrict nptr, wchar_t** restrict endptr);         // C99

long double wcstold(const wchar_t* restrict nptr, wchar_t** restrict endptr);  // C99

long wcstol(const wchar_t* restrict nptr, wchar_t** restrict endptr, int base);

long long wcstoll(const wchar_t* restrict nptr, wchar_t** restrict endptr, int base);  // C99

unsigned long wcstoul(const wchar_t* restrict nptr, wchar_t** restrict endptr, int base);

unsigned long long wcstoull(const wchar_t* restrict nptr, wchar_t** restrict endptr, int base);  // C99

wchar_t* wcscpy(wchar_t* restrict s1, const wchar_t* restrict s2);

wchar_t* wcsncpy(wchar_t* restrict s1, const wchar_t* restrict s2, size_t n);

wchar_t* wcscat(wchar_t* restrict s1, const wchar_t* restrict s2);

wchar_t* wcsncat(wchar_t* restrict s1, const wchar_t* restrict s2, size_t n);

int wcscmp(const wchar_t* s1, const wchar_t* s2);

int wcscoll(const wchar_t* s1, const wchar_t* s2);

int wcsncmp(const wchar_t* s1, const wchar_t* s2, size_t n);

size_t wcsxfrm(wchar_t* restrict s1, const wchar_t* restrict s2, size_t n);

const wchar_t* wcschr(const wchar_t* s, wchar_t c);

      wchar_t* wcschr(      wchar_t* s, wchar_t c);

size_t wcscspn(const wchar_t* s1, const wchar_t* s2);

size_t wcslen(const wchar_t* s);

const wchar_t* wcspbrk(const wchar_t* s1, const wchar_t* s2);

      wchar_t* wcspbrk(      wchar_t* s1, const wchar_t* s2);

const wchar_t* wcsrchr(const wchar_t* s, wchar_t c);

      wchar_t* wcsrchr(      wchar_t* s, wchar_t c);

size_t wcsspn(const wchar_t* s1, const wchar_t* s2);

const wchar_t* wcsstr(const wchar_t* s1, const wchar_t* s2);

      wchar_t* wcsstr(      wchar_t* s1, const wchar_t* s2);

wchar_t* wcstok(wchar_t* restrict s1, const wchar_t* restrict s2, wchar_t** restrict ptr);

const wchar_t* wmemchr(const wchar_t* s, wchar_t c, size_t n);

      wchar_t* wmemchr(      wchar_t* s, wchar_t c, size_t n);

int wmemcmp(wchar_t* restrict s1, const wchar_t* restrict s2, size_t n);

wchar_t* wmemcpy(wchar_t* restrict s1, const wchar_t* restrict s2, size_t n);

wchar_t* wmemmove(wchar_t* s1, const wchar_t* s2, size_t n);

wchar_t* wmemset(wchar_t* s, wchar_t c, size_t n);

size_t wcsftime(wchar_t* restrict s, size_t maxsize, const wchar_t* restrict format,

                const tm* restrict timeptr);

wint_t btowc(int c);

int wctob(wint_t c);

int mbsinit(const mbstate_t* ps);

size_t mbrlen(const char* restrict s, size_t n, mbstate_t* restrict ps);

size_t mbrtowc(wchar_t* restrict pwc, const char* restrict s, size_t n, mbstate_t* restrict ps);

size_t wcrtomb(char* restrict s, wchar_t wc, mbstate_t* restrict ps);

size_t mbsrtowcs(wchar_t* restrict dst, const char** restrict src, size_t len,

                 mbstate_t* restrict ps);

size_t wcsrtombs(char* restrict dst, const wchar_t** restrict src, size_t len,

                 mbstate_t* restrict ps);

}  // std

*/

#include <__assert> // all public C++ headers provide the assertion handler

#include <__config>

#include <__type_traits/apply_cv.h>

#include <__type_traits/is_constant_evaluated.h>

#include <__type_traits/is_equality_comparable.h>

#include <__type_traits/is_same.h>

#include <__type_traits/remove_cv.h>

#include <cwctype>

#include <wchar.h>

#ifndef _LIBCPP_WCHAR_H

#   error <cwchar> tried including <wchar.h> but didn't find libc++'s <wchar.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

using ::mbstate_t _LIBCPP_USING_IF_EXISTS;

using ::size_t _LIBCPP_USING_IF_EXISTS;

using ::tm _LIBCPP_USING_IF_EXISTS;

using ::wint_t _LIBCPP_USING_IF_EXISTS;

using ::FILE _LIBCPP_USING_IF_EXISTS;

using ::fwprintf _LIBCPP_USING_IF_EXISTS;

using ::fwscanf _LIBCPP_USING_IF_EXISTS;

using ::swprintf _LIBCPP_USING_IF_EXISTS;

using ::vfwprintf _LIBCPP_USING_IF_EXISTS;

using ::vswprintf _LIBCPP_USING_IF_EXISTS;

using ::swscanf _LIBCPP_USING_IF_EXISTS;

using ::vfwscanf _LIBCPP_USING_IF_EXISTS;

using ::vswscanf _LIBCPP_USING_IF_EXISTS;

using ::fgetwc _LIBCPP_USING_IF_EXISTS;

using ::fgetws _LIBCPP_USING_IF_EXISTS;

using ::fputwc _LIBCPP_USING_IF_EXISTS;

using ::fputws _LIBCPP_USING_IF_EXISTS;

using ::fwide _LIBCPP_USING_IF_EXISTS;

using ::getwc _LIBCPP_USING_IF_EXISTS;

using ::putwc _LIBCPP_USING_IF_EXISTS;

using ::ungetwc _LIBCPP_USING_IF_EXISTS;

using ::wcstod _LIBCPP_USING_IF_EXISTS;

using ::wcstof _LIBCPP_USING_IF_EXISTS;

using ::wcstold _LIBCPP_USING_IF_EXISTS;

using ::wcstol _LIBCPP_USING_IF_EXISTS;

using ::wcstoll _LIBCPP_USING_IF_EXISTS;

using ::wcstoul _LIBCPP_USING_IF_EXISTS;

using ::wcstoull _LIBCPP_USING_IF_EXISTS;

using ::wcscpy _LIBCPP_USING_IF_EXISTS;

using ::wcsncpy _LIBCPP_USING_IF_EXISTS;

using ::wcscat _LIBCPP_USING_IF_EXISTS;

using ::wcsncat _LIBCPP_USING_IF_EXISTS;

using ::wcscmp _LIBCPP_USING_IF_EXISTS;

using ::wcscoll _LIBCPP_USING_IF_EXISTS;

using ::wcsncmp _LIBCPP_USING_IF_EXISTS;

using ::wcsxfrm _LIBCPP_USING_IF_EXISTS;

using ::wcschr _LIBCPP_USING_IF_EXISTS;

using ::wcspbrk _LIBCPP_USING_IF_EXISTS;

using ::wcsrchr _LIBCPP_USING_IF_EXISTS;

using ::wcsstr _LIBCPP_USING_IF_EXISTS;

using ::wmemchr _LIBCPP_USING_IF_EXISTS;

using ::wcscspn _LIBCPP_USING_IF_EXISTS;

using ::wcslen _LIBCPP_USING_IF_EXISTS;

using ::wcsspn _LIBCPP_USING_IF_EXISTS;

using ::wcstok _LIBCPP_USING_IF_EXISTS;

using ::wmemcmp _LIBCPP_USING_IF_EXISTS;

using ::wmemcpy _LIBCPP_USING_IF_EXISTS;

using ::wmemmove _LIBCPP_USING_IF_EXISTS;

using ::wmemset _LIBCPP_USING_IF_EXISTS;

using ::wcsftime _LIBCPP_USING_IF_EXISTS;

using ::btowc _LIBCPP_USING_IF_EXISTS;

using ::wctob _LIBCPP_USING_IF_EXISTS;

using ::mbsinit _LIBCPP_USING_IF_EXISTS;

using ::mbrlen _LIBCPP_USING_IF_EXISTS;

using ::mbrtowc _LIBCPP_USING_IF_EXISTS;

using ::wcrtomb _LIBCPP_USING_IF_EXISTS;

using ::mbsrtowcs _LIBCPP_USING_IF_EXISTS;

using ::wcsrtombs _LIBCPP_USING_IF_EXISTS;

using ::getwchar _LIBCPP_USING_IF_EXISTS;

using ::vwscanf _LIBCPP_USING_IF_EXISTS;

using ::wscanf _LIBCPP_USING_IF_EXISTS;

using ::putwchar _LIBCPP_USING_IF_EXISTS;

using ::vwprintf _LIBCPP_USING_IF_EXISTS;

using ::wprintf _LIBCPP_USING_IF_EXISTS;

inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 size_t __constexpr_wcslen(const wchar_t* __str) {

#if __has_builtin(__builtin_wcslen)

  return __builtin_wcslen(__str);

#else

  if (!__libcpp_is_constant_evaluated())

    return std::wcslen(__str);

  size_t __len = 0;

  for (; *__str != L'\0'; ++__str)

    ++__len;

  return __len;

#endif

}

inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 int

__constexpr_wmemcmp(const wchar_t* __lhs, const wchar_t* __rhs, size_t __count) {

#if __has_builtin(__builtin_wmemcmp)

  return __builtin_wmemcmp(__lhs, __rhs, __count);

#else

  if (!__libcpp_is_constant_evaluated())

    return std::wmemcmp(__lhs, __rhs, __count);

  for (; __count; --__count, ++__lhs, ++__rhs) {

    if (*__lhs < *__rhs)

      return -1;

    if (*__rhs < *__lhs)

      return 1;

  }

  return 0;

#endif

}

template <class _Tp, class _Up>

_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 _Tp* __constexpr_wmemchr(_Tp* __str, _Up __value, size_t __count) {

  static_assert(sizeof(_Tp) == sizeof(wchar_t)&& _LIBCPP_ALIGNOF(_Tp) >= _LIBCPP_ALIGNOF(wchar_t) &&

                    __libcpp_is_trivially_equality_comparable<_Tp, _Tp>::value,

                "Calling wmemchr on non-trivially equality comparable types is unsafe.");

#if __has_builtin(__builtin_wmemchr)

  if (!__libcpp_is_constant_evaluated()) {

    wchar_t __value_buffer = 0;

    __builtin_memcpy(&__value_buffer, &__value, sizeof(wchar_t));

    return reinterpret_cast<_Tp*>(

        __builtin_wmemchr(reinterpret_cast<__apply_cv_t<_Tp, wchar_t>*>(__str), __value_buffer, __count));

  }

#  if _LIBCPP_STD_VER >= 17

  else if constexpr (is_same_v<remove_cv_t<_Tp>, wchar_t>)

    return __builtin_wmemchr(__str, __value, __count);

#  endif

#endif // __has_builtin(__builtin_wmemchr)

  for (; __count; --__count) {

    if (*__str == __value)

      return __str;

    ++__str;

  }

  return nullptr;

}

Unexecuted instantiation: wchar_t const* std::__1::__constexpr_wmemchr[abi:ne180100]<wchar_t const, wchar_t>(wchar_t const*, wchar_t, unsigned long)

Unexecuted instantiation: wchar_t* std::__1::__constexpr_wmemchr[abi:ne180100]<wchar_t, wchar_t>(wchar_t*, wchar_t, unsigned long)

_LIBCPP_END_NAMESPACE_STD

#endif // _LIBCPP_CWCHAR