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wchar.h revision 1.1
      1 // -*- C++ -*-
      2 //===--------------------------- wchar.h ----------------------------------===//
      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 #if defined(__need_wint_t) || defined(__need_mbstate_t)
     11 
     12 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
     13 #pragma GCC system_header
     14 #endif
     15 
     16 #include_next <wchar.h>
     17 
     18 #elif !defined(_LIBCPP_WCHAR_H)
     19 #define _LIBCPP_WCHAR_H
     20 
     21 /*
     22     wchar.h synopsis
     23 
     24 Macros:
     25 
     26     NULL
     27     WCHAR_MAX
     28     WCHAR_MIN
     29     WEOF
     30 
     31 Types:
     32 
     33     mbstate_t
     34     size_t
     35     tm
     36     wint_t
     37 
     38 int fwprintf(FILE* restrict stream, const wchar_t* restrict format, ...);
     39 int fwscanf(FILE* restrict stream, const wchar_t* restrict format, ...);
     40 int swprintf(wchar_t* restrict s, size_t n, const wchar_t* restrict format, ...);
     41 int swscanf(const wchar_t* restrict s, const wchar_t* restrict format, ...);
     42 int vfwprintf(FILE* restrict stream, const wchar_t* restrict format, va_list arg);
     43 int vfwscanf(FILE* restrict stream, const wchar_t* restrict format, va_list arg);  // C99
     44 int vswprintf(wchar_t* restrict s, size_t n, const wchar_t* restrict format, va_list arg);
     45 int vswscanf(const wchar_t* restrict s, const wchar_t* restrict format, va_list arg);  // C99
     46 int vwprintf(const wchar_t* restrict format, va_list arg);
     47 int vwscanf(const wchar_t* restrict format, va_list arg);  // C99
     48 int wprintf(const wchar_t* restrict format, ...);
     49 int wscanf(const wchar_t* restrict format, ...);
     50 wint_t fgetwc(FILE* stream);
     51 wchar_t* fgetws(wchar_t* restrict s, int n, FILE* restrict stream);
     52 wint_t fputwc(wchar_t c, FILE* stream);
     53 int fputws(const wchar_t* restrict s, FILE* restrict stream);
     54 int fwide(FILE* stream, int mode);
     55 wint_t getwc(FILE* stream);
     56 wint_t getwchar();
     57 wint_t putwc(wchar_t c, FILE* stream);
     58 wint_t putwchar(wchar_t c);
     59 wint_t ungetwc(wint_t c, FILE* stream);
     60 double wcstod(const wchar_t* restrict nptr, wchar_t** restrict endptr);
     61 float wcstof(const wchar_t* restrict nptr, wchar_t** restrict endptr);         // C99
     62 long double wcstold(const wchar_t* restrict nptr, wchar_t** restrict endptr);  // C99
     63 long wcstol(const wchar_t* restrict nptr, wchar_t** restrict endptr, int base);
     64 long long wcstoll(const wchar_t* restrict nptr, wchar_t** restrict endptr, int base);  // C99
     65 unsigned long wcstoul(const wchar_t* restrict nptr, wchar_t** restrict endptr, int base);
     66 unsigned long long wcstoull(const wchar_t* restrict nptr, wchar_t** restrict endptr, int base);  // C99
     67 wchar_t* wcscpy(wchar_t* restrict s1, const wchar_t* restrict s2);
     68 wchar_t* wcsncpy(wchar_t* restrict s1, const wchar_t* restrict s2, size_t n);
     69 wchar_t* wcscat(wchar_t* restrict s1, const wchar_t* restrict s2);
     70 wchar_t* wcsncat(wchar_t* restrict s1, const wchar_t* restrict s2, size_t n);
     71 int wcscmp(const wchar_t* s1, const wchar_t* s2);
     72 int wcscoll(const wchar_t* s1, const wchar_t* s2);
     73 int wcsncmp(const wchar_t* s1, const wchar_t* s2, size_t n);
     74 size_t wcsxfrm(wchar_t* restrict s1, const wchar_t* restrict s2, size_t n);
     75 const wchar_t* wcschr(const wchar_t* s, wchar_t c);
     76       wchar_t* wcschr(      wchar_t* s, wchar_t c);
     77 size_t wcscspn(const wchar_t* s1, const wchar_t* s2);
     78 size_t wcslen(const wchar_t* s);
     79 const wchar_t* wcspbrk(const wchar_t* s1, const wchar_t* s2);
     80       wchar_t* wcspbrk(      wchar_t* s1, const wchar_t* s2);
     81 const wchar_t* wcsrchr(const wchar_t* s, wchar_t c);
     82       wchar_t* wcsrchr(      wchar_t* s, wchar_t c);
     83 size_t wcsspn(const wchar_t* s1, const wchar_t* s2);
     84 const wchar_t* wcsstr(const wchar_t* s1, const wchar_t* s2);
     85       wchar_t* wcsstr(      wchar_t* s1, const wchar_t* s2);
     86 wchar_t* wcstok(wchar_t* restrict s1, const wchar_t* restrict s2, wchar_t** restrict ptr);
     87 const wchar_t* wmemchr(const wchar_t* s, wchar_t c, size_t n);
     88       wchar_t* wmemchr(      wchar_t* s, wchar_t c, size_t n);
     89 int wmemcmp(wchar_t* restrict s1, const wchar_t* restrict s2, size_t n);
     90 wchar_t* wmemcpy(wchar_t* restrict s1, const wchar_t* restrict s2, size_t n);
     91 wchar_t* wmemmove(wchar_t* s1, const wchar_t* s2, size_t n);
     92 wchar_t* wmemset(wchar_t* s, wchar_t c, size_t n);
     93 size_t wcsftime(wchar_t* restrict s, size_t maxsize, const wchar_t* restrict format,
     94                 const tm* restrict timeptr);
     95 wint_t btowc(int c);
     96 int wctob(wint_t c);
     97 int mbsinit(const mbstate_t* ps);
     98 size_t mbrlen(const char* restrict s, size_t n, mbstate_t* restrict ps);
     99 size_t mbrtowc(wchar_t* restrict pwc, const char* restrict s, size_t n, mbstate_t* restrict ps);
    100 size_t wcrtomb(char* restrict s, wchar_t wc, mbstate_t* restrict ps);
    101 size_t mbsrtowcs(wchar_t* restrict dst, const char** restrict src, size_t len,
    102                  mbstate_t* restrict ps);
    103 size_t wcsrtombs(char* restrict dst, const wchar_t** restrict src, size_t len,
    104                  mbstate_t* restrict ps);
    105 
    106 */
    107 
    108 #include <__config>
    109 #include <stddef.h>
    110 
    111 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
    112 #pragma GCC system_header
    113 #endif
    114 
    115 #ifdef __cplusplus
    116 #define __CORRECT_ISO_CPP_WCHAR_H_PROTO
    117 #endif
    118 
    119 #include_next <wchar.h>
    120 
    121 // Determine whether we have const-correct overloads for wcschr and friends.
    122 #if defined(_WCHAR_H_CPLUSPLUS_98_CONFORMANCE_)
    123 #  define _LIBCPP_WCHAR_H_HAS_CONST_OVERLOADS 1
    124 #elif defined(__GLIBC_PREREQ)
    125 #  if __GLIBC_PREREQ(2, 10)
    126 #    define _LIBCPP_WCHAR_H_HAS_CONST_OVERLOADS 1
    127 #  endif
    128 #elif defined(_LIBCPP_MSVCRT)
    129 #  if defined(_CRT_CONST_CORRECT_OVERLOADS)
    130 #    define _LIBCPP_WCHAR_H_HAS_CONST_OVERLOADS 1
    131 #  endif
    132 #endif
    133 
    134 #if defined(__cplusplus) && !defined(_LIBCPP_WCHAR_H_HAS_CONST_OVERLOADS) && defined(_LIBCPP_PREFERRED_OVERLOAD)
    135 extern "C++" {
    136 inline _LIBCPP_INLINE_VISIBILITY
    137 wchar_t* __libcpp_wcschr(const wchar_t* __s, wchar_t __c) {return (wchar_t*)wcschr(__s, __c);}
    138 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
    139 const wchar_t* wcschr(const wchar_t* __s, wchar_t __c) {return __libcpp_wcschr(__s, __c);}
    140 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
    141       wchar_t* wcschr(      wchar_t* __s, wchar_t __c) {return __libcpp_wcschr(__s, __c);}
    142 
    143 inline _LIBCPP_INLINE_VISIBILITY
    144 wchar_t* __libcpp_wcspbrk(const wchar_t* __s1, const wchar_t* __s2) {return (wchar_t*)wcspbrk(__s1, __s2);}
    145 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
    146 const wchar_t* wcspbrk(const wchar_t* __s1, const wchar_t* __s2) {return __libcpp_wcspbrk(__s1, __s2);}
    147 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
    148       wchar_t* wcspbrk(      wchar_t* __s1, const wchar_t* __s2) {return __libcpp_wcspbrk(__s1, __s2);}
    149 
    150 inline _LIBCPP_INLINE_VISIBILITY
    151 wchar_t* __libcpp_wcsrchr(const wchar_t* __s, wchar_t __c) {return (wchar_t*)wcsrchr(__s, __c);}
    152 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
    153 const wchar_t* wcsrchr(const wchar_t* __s, wchar_t __c) {return __libcpp_wcsrchr(__s, __c);}
    154 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
    155       wchar_t* wcsrchr(      wchar_t* __s, wchar_t __c) {return __libcpp_wcsrchr(__s, __c);}
    156 
    157 inline _LIBCPP_INLINE_VISIBILITY
    158 wchar_t* __libcpp_wcsstr(const wchar_t* __s1, const wchar_t* __s2) {return (wchar_t*)wcsstr(__s1, __s2);}
    159 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
    160 const wchar_t* wcsstr(const wchar_t* __s1, const wchar_t* __s2) {return __libcpp_wcsstr(__s1, __s2);}
    161 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
    162       wchar_t* wcsstr(      wchar_t* __s1, const wchar_t* __s2) {return __libcpp_wcsstr(__s1, __s2);}
    163 
    164 inline _LIBCPP_INLINE_VISIBILITY
    165 wchar_t* __libcpp_wmemchr(const wchar_t* __s, wchar_t __c, size_t __n) {return (wchar_t*)wmemchr(__s, __c, __n);}
    166 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
    167 const wchar_t* wmemchr(const wchar_t* __s, wchar_t __c, size_t __n) {return __libcpp_wmemchr(__s, __c, __n);}
    168 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
    169       wchar_t* wmemchr(      wchar_t* __s, wchar_t __c, size_t __n) {return __libcpp_wmemchr(__s, __c, __n);}
    170 }
    171 #endif
    172 
    173 #if defined(__cplusplus) && defined(_LIBCPP_MSVCRT_LIKE)
    174 extern "C" {
    175 size_t mbsnrtowcs(wchar_t *__restrict dst, const char **__restrict src,
    176                   size_t nmc, size_t len, mbstate_t *__restrict ps);
    177 size_t wcsnrtombs(char *__restrict dst, const wchar_t **__restrict src,
    178                   size_t nwc, size_t len, mbstate_t *__restrict ps);
    179 }  // extern "C++"
    180 #endif // __cplusplus && _LIBCPP_MSVCRT
    181 
    182 #endif // _LIBCPP_WCHAR_H
    183