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#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
24Macros:
25
26    NULL
27    WCHAR_MAX
28    WCHAR_MIN
29    WEOF
30
31Types:
32
33    mbstate_t
34    size_t
35    tm
36    wint_t
37
38int fwprintf(FILE* restrict stream, const wchar_t* restrict format, ...);
39int fwscanf(FILE* restrict stream, const wchar_t* restrict format, ...);
40int swprintf(wchar_t* restrict s, size_t n, const wchar_t* restrict format, ...);
41int swscanf(const wchar_t* restrict s, const wchar_t* restrict format, ...);
42int vfwprintf(FILE* restrict stream, const wchar_t* restrict format, va_list arg);
43int vfwscanf(FILE* restrict stream, const wchar_t* restrict format, va_list arg);  // C99
44int vswprintf(wchar_t* restrict s, size_t n, const wchar_t* restrict format, va_list arg);
45int vswscanf(const wchar_t* restrict s, const wchar_t* restrict format, va_list arg);  // C99
46int vwprintf(const wchar_t* restrict format, va_list arg);
47int vwscanf(const wchar_t* restrict format, va_list arg);  // C99
48int wprintf(const wchar_t* restrict format, ...);
49int wscanf(const wchar_t* restrict format, ...);
50wint_t fgetwc(FILE* stream);
51wchar_t* fgetws(wchar_t* restrict s, int n, FILE* restrict stream);
52wint_t fputwc(wchar_t c, FILE* stream);
53int fputws(const wchar_t* restrict s, FILE* restrict stream);
54int fwide(FILE* stream, int mode);
55wint_t getwc(FILE* stream);
56wint_t getwchar();
57wint_t putwc(wchar_t c, FILE* stream);
58wint_t putwchar(wchar_t c);
59wint_t ungetwc(wint_t c, FILE* stream);
60double wcstod(const wchar_t* restrict nptr, wchar_t** restrict endptr);
61float wcstof(const wchar_t* restrict nptr, wchar_t** restrict endptr);         // C99
62long double wcstold(const wchar_t* restrict nptr, wchar_t** restrict endptr);  // C99
63long wcstol(const wchar_t* restrict nptr, wchar_t** restrict endptr, int base);
64long long wcstoll(const wchar_t* restrict nptr, wchar_t** restrict endptr, int base);  // C99
65unsigned long wcstoul(const wchar_t* restrict nptr, wchar_t** restrict endptr, int base);
66unsigned long long wcstoull(const wchar_t* restrict nptr, wchar_t** restrict endptr, int base);  // C99
67wchar_t* wcscpy(wchar_t* restrict s1, const wchar_t* restrict s2);
68wchar_t* wcsncpy(wchar_t* restrict s1, const wchar_t* restrict s2, size_t n);
69wchar_t* wcscat(wchar_t* restrict s1, const wchar_t* restrict s2);
70wchar_t* wcsncat(wchar_t* restrict s1, const wchar_t* restrict s2, size_t n);
71int wcscmp(const wchar_t* s1, const wchar_t* s2);
72int wcscoll(const wchar_t* s1, const wchar_t* s2);
73int wcsncmp(const wchar_t* s1, const wchar_t* s2, size_t n);
74size_t wcsxfrm(wchar_t* restrict s1, const wchar_t* restrict s2, size_t n);
75const wchar_t* wcschr(const wchar_t* s, wchar_t c);
76      wchar_t* wcschr(      wchar_t* s, wchar_t c);
77size_t wcscspn(const wchar_t* s1, const wchar_t* s2);
78size_t wcslen(const wchar_t* s);
79const wchar_t* wcspbrk(const wchar_t* s1, const wchar_t* s2);
80      wchar_t* wcspbrk(      wchar_t* s1, const wchar_t* s2);
81const wchar_t* wcsrchr(const wchar_t* s, wchar_t c);
82      wchar_t* wcsrchr(      wchar_t* s, wchar_t c);
83size_t wcsspn(const wchar_t* s1, const wchar_t* s2);
84const wchar_t* wcsstr(const wchar_t* s1, const wchar_t* s2);
85      wchar_t* wcsstr(      wchar_t* s1, const wchar_t* s2);
86wchar_t* wcstok(wchar_t* restrict s1, const wchar_t* restrict s2, wchar_t** restrict ptr);
87const 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);
89int wmemcmp(wchar_t* restrict s1, const wchar_t* restrict s2, size_t n);
90wchar_t* wmemcpy(wchar_t* restrict s1, const wchar_t* restrict s2, size_t n);
91wchar_t* wmemmove(wchar_t* s1, const wchar_t* s2, size_t n);
92wchar_t* wmemset(wchar_t* s, wchar_t c, size_t n);
93size_t wcsftime(wchar_t* restrict s, size_t maxsize, const wchar_t* restrict format,
94                const tm* restrict timeptr);
95wint_t btowc(int c);
96int wctob(wint_t c);
97int mbsinit(const mbstate_t* ps);
98size_t mbrlen(const char* restrict s, size_t n, mbstate_t* restrict ps);
99size_t mbrtowc(wchar_t* restrict pwc, const char* restrict s, size_t n, mbstate_t* restrict ps);
100size_t wcrtomb(char* restrict s, wchar_t wc, mbstate_t* restrict ps);
101size_t mbsrtowcs(wchar_t* restrict dst, const char** restrict src, size_t len,
102                 mbstate_t* restrict ps);
103size_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_WIDE_CHARACTERS)
112#    error                                                                                                             \
113        "The <wchar.h> header is not supported since libc++ has been configured with LIBCXX_ENABLE_WIDE_CHARACTERS disabled"
114#  endif
115
116#  if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
117#    pragma GCC system_header
118#  endif
119
120// We define this here to support older versions of glibc <wchar.h> that do
121// not define this for clang.
122#  ifdef __cplusplus
123#    define __CORRECT_ISO_CPP_WCHAR_H_PROTO
124#  endif
125
126#  if __has_include_next(<wchar.h>)
127#    include_next <wchar.h>
128#  else
129#    include <__mbstate_t.h> // make sure we have mbstate_t regardless of the existence of <wchar.h>
130#  endif
131
132// Determine whether we have const-correct overloads for wcschr and friends.
133#  if defined(_WCHAR_H_CPLUSPLUS_98_CONFORMANCE_)
134#    define _LIBCPP_WCHAR_H_HAS_CONST_OVERLOADS 1
135#  elif defined(__GLIBC_PREREQ)
136#    if __GLIBC_PREREQ(2, 10)
137#      define _LIBCPP_WCHAR_H_HAS_CONST_OVERLOADS 1
138#    endif
139#  elif defined(_LIBCPP_MSVCRT)
140#    if defined(_CRT_CONST_CORRECT_OVERLOADS)
141#      define _LIBCPP_WCHAR_H_HAS_CONST_OVERLOADS 1
142#    endif
143#  endif
144
145#  if defined(__cplusplus) && !defined(_LIBCPP_WCHAR_H_HAS_CONST_OVERLOADS) && defined(_LIBCPP_PREFERRED_OVERLOAD)
146extern "C++" {
147inline _LIBCPP_HIDE_FROM_ABI wchar_t* __libcpp_wcschr(const wchar_t* __s, wchar_t __c) {
148  return (wchar_t*)wcschr(__s, __c);
149}
150inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_PREFERRED_OVERLOAD const wchar_t* wcschr(const wchar_t* __s, wchar_t __c) {
151  return __libcpp_wcschr(__s, __c);
152}
153inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_PREFERRED_OVERLOAD wchar_t* wcschr(wchar_t* __s, wchar_t __c) {
154  return __libcpp_wcschr(__s, __c);
155}
156
157inline _LIBCPP_HIDE_FROM_ABI wchar_t* __libcpp_wcspbrk(const wchar_t* __s1, const wchar_t* __s2) {
158  return (wchar_t*)wcspbrk(__s1, __s2);
159}
160inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_PREFERRED_OVERLOAD const wchar_t*
161wcspbrk(const wchar_t* __s1, const wchar_t* __s2) {
162  return __libcpp_wcspbrk(__s1, __s2);
163}
164inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_PREFERRED_OVERLOAD wchar_t* wcspbrk(wchar_t* __s1, const wchar_t* __s2) {
165  return __libcpp_wcspbrk(__s1, __s2);
166}
167
168inline _LIBCPP_HIDE_FROM_ABI wchar_t* __libcpp_wcsrchr(const wchar_t* __s, wchar_t __c) {
169  return (wchar_t*)wcsrchr(__s, __c);
170}
171inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_PREFERRED_OVERLOAD const wchar_t* wcsrchr(const wchar_t* __s, wchar_t __c) {
172  return __libcpp_wcsrchr(__s, __c);
173}
174inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_PREFERRED_OVERLOAD wchar_t* wcsrchr(wchar_t* __s, wchar_t __c) {
175  return __libcpp_wcsrchr(__s, __c);
176}
177
178inline _LIBCPP_HIDE_FROM_ABI wchar_t* __libcpp_wcsstr(const wchar_t* __s1, const wchar_t* __s2) {
179  return (wchar_t*)wcsstr(__s1, __s2);
180}
181inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_PREFERRED_OVERLOAD const wchar_t*
182wcsstr(const wchar_t* __s1, const wchar_t* __s2) {
183  return __libcpp_wcsstr(__s1, __s2);
184}
185inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_PREFERRED_OVERLOAD wchar_t* wcsstr(wchar_t* __s1, const wchar_t* __s2) {
186  return __libcpp_wcsstr(__s1, __s2);
187}
188
189inline _LIBCPP_HIDE_FROM_ABI wchar_t* __libcpp_wmemchr(const wchar_t* __s, wchar_t __c, size_t __n) {
190  return (wchar_t*)wmemchr(__s, __c, __n);
191}
192inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_PREFERRED_OVERLOAD const wchar_t*
193wmemchr(const wchar_t* __s, wchar_t __c, size_t __n) {
194  return __libcpp_wmemchr(__s, __c, __n);
195}
196inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_PREFERRED_OVERLOAD wchar_t* wmemchr(wchar_t* __s, wchar_t __c, size_t __n) {
197  return __libcpp_wmemchr(__s, __c, __n);
198}
199}
200#  endif
201
202#  if defined(__cplusplus) && (defined(_LIBCPP_MSVCRT_LIKE) || defined(__MVS__))
203extern "C" {
204size_t mbsnrtowcs(
205    wchar_t* __restrict __dst, const char** __restrict __src, size_t __nmc, size_t __len, mbstate_t* __restrict __ps);
206size_t wcsnrtombs(
207    char* __restrict __dst, const wchar_t** __restrict __src, size_t __nwc, size_t __len, mbstate_t* __restrict __ps);
208} // extern "C"
209#  endif // __cplusplus && (_LIBCPP_MSVCRT || __MVS__)
210
211#endif // _LIBCPP_WCHAR_H
212