text: // -*- C++ -*-
  //===--------------------------- wchar.h ----------------------------------===//
  //
  // 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
  //
  //===----------------------------------------------------------------------===//
  
  #if defined(__need_wint_t) || defined(__need_mbstate_t)
  
  #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
  #pragma GCC system_header
  #endif
  
  #include_next <wchar.h>
  
  #elif !defined(_LIBCPP_WCHAR_H)
  #define _LIBCPP_WCHAR_H
  
  /*
      wchar.h synopsis
  
  Macros:
  
      NULL
      WCHAR_MAX
      WCHAR_MIN
      WEOF
  
  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);
  
  */
  
  #include <__config>
  
  #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
  #pragma GCC system_header
  #endif
  
  #ifdef __cplusplus
  #define __CORRECT_ISO_CPP_WCHAR_H_PROTO
  #endif
  
  #include_next <wchar.h>
  
  // Determine whether we have const-correct overloads for wcschr and friends.
  #if defined(_WCHAR_H_CPLUSPLUS_98_CONFORMANCE_)
  #  define _LIBCPP_WCHAR_H_HAS_CONST_OVERLOADS 1
  #elif defined(__GLIBC_PREREQ)
  #  if __GLIBC_PREREQ(2, 10)
  #    define _LIBCPP_WCHAR_H_HAS_CONST_OVERLOADS 1
  #  endif
  #elif defined(_LIBCPP_MSVCRT)
  #  if defined(_CRT_CONST_CORRECT_OVERLOADS)
  #    define _LIBCPP_WCHAR_H_HAS_CONST_OVERLOADS 1
  #  endif
  #endif
  
  #if defined(__cplusplus) && !defined(_LIBCPP_WCHAR_H_HAS_CONST_OVERLOADS) && defined(_LIBCPP_PREFERRED_OVERLOAD)
  extern "C++" {
  inline _LIBCPP_INLINE_VISIBILITY
  wchar_t* __libcpp_wcschr(const wchar_t* __s, wchar_t __c) {return (wchar_t*)wcschr(__s, __c);}
  inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
  const wchar_t* wcschr(const wchar_t* __s, wchar_t __c) {return __libcpp_wcschr(__s, __c);}
  inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
        wchar_t* wcschr(      wchar_t* __s, wchar_t __c) {return __libcpp_wcschr(__s, __c);}
  
  inline _LIBCPP_INLINE_VISIBILITY
  wchar_t* __libcpp_wcspbrk(const wchar_t* __s1, const wchar_t* __s2) {return (wchar_t*)wcspbrk(__s1, __s2);}
  inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
  const wchar_t* wcspbrk(const wchar_t* __s1, const wchar_t* __s2) {return __libcpp_wcspbrk(__s1, __s2);}
  inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
        wchar_t* wcspbrk(      wchar_t* __s1, const wchar_t* __s2) {return __libcpp_wcspbrk(__s1, __s2);}
  
  inline _LIBCPP_INLINE_VISIBILITY
  wchar_t* __libcpp_wcsrchr(const wchar_t* __s, wchar_t __c) {return (wchar_t*)wcsrchr(__s, __c);}
  inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
  const wchar_t* wcsrchr(const wchar_t* __s, wchar_t __c) {return __libcpp_wcsrchr(__s, __c);}
  inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
        wchar_t* wcsrchr(      wchar_t* __s, wchar_t __c) {return __libcpp_wcsrchr(__s, __c);}
  
  inline _LIBCPP_INLINE_VISIBILITY
  wchar_t* __libcpp_wcsstr(const wchar_t* __s1, const wchar_t* __s2) {return (wchar_t*)wcsstr(__s1, __s2);}
  inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
  const wchar_t* wcsstr(const wchar_t* __s1, const wchar_t* __s2) {return __libcpp_wcsstr(__s1, __s2);}
  inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
        wchar_t* wcsstr(      wchar_t* __s1, const wchar_t* __s2) {return __libcpp_wcsstr(__s1, __s2);}
  
  inline _LIBCPP_INLINE_VISIBILITY
  wchar_t* __libcpp_wmemchr(const wchar_t* __s, wchar_t __c, size_t __n) {return (wchar_t*)wmemchr(__s, __c, __n);}
  inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
  const wchar_t* wmemchr(const wchar_t* __s, wchar_t __c, size_t __n) {return __libcpp_wmemchr(__s, __c, __n);}
  inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
        wchar_t* wmemchr(      wchar_t* __s, wchar_t __c, size_t __n) {return __libcpp_wmemchr(__s, __c, __n);}
  }
  #endif
  
  #if defined(__cplusplus) && defined(_LIBCPP_MSVCRT_LIKE)
  extern "C" {
  size_t mbsnrtowcs(wchar_t *__restrict dst, const char **__restrict src,
                    size_t nmc, size_t len, mbstate_t *__restrict ps);
  size_t wcsnrtombs(char *__restrict dst, const wchar_t **__restrict src,
                    size_t nwc, size_t len, mbstate_t *__restrict ps);
  }  // extern "C++"
  #endif  // __cplusplus && _LIBCPP_MSVCRT
  
  #endif  // _LIBCPP_WCHAR_H
  