xref: /freebsd/contrib/llvm-project/libcxx/include/wchar.h (revision 7ef62cebc2f965b0f640263e179276928885e33d)
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 
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_WIDE_CHARACTERS)
112 #   error "The <wchar.h> header is not supported since libc++ has been configured with LIBCXX_ENABLE_WIDE_CHARACTERS disabled"
113 #endif
114 
115 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
116 #  pragma GCC system_header
117 #endif
118 
119 #ifdef __cplusplus
120 #define __CORRECT_ISO_CPP_WCHAR_H_PROTO
121 #endif
122 
123 #  if __has_include_next(<wchar.h>)
124 #    include_next <wchar.h>
125 #  endif
126 
127 // Determine whether we have const-correct overloads for wcschr and friends.
128 #if defined(_WCHAR_H_CPLUSPLUS_98_CONFORMANCE_)
129 #  define _LIBCPP_WCHAR_H_HAS_CONST_OVERLOADS 1
130 #elif defined(__GLIBC_PREREQ)
131 #  if __GLIBC_PREREQ(2, 10)
132 #    define _LIBCPP_WCHAR_H_HAS_CONST_OVERLOADS 1
133 #  endif
134 #elif defined(_LIBCPP_MSVCRT)
135 #  if defined(_CRT_CONST_CORRECT_OVERLOADS)
136 #    define _LIBCPP_WCHAR_H_HAS_CONST_OVERLOADS 1
137 #  endif
138 #endif
139 
140 #if defined(__cplusplus) && !defined(_LIBCPP_WCHAR_H_HAS_CONST_OVERLOADS) && defined(_LIBCPP_PREFERRED_OVERLOAD)
141 extern "C++" {
142 inline _LIBCPP_INLINE_VISIBILITY
143 wchar_t* __libcpp_wcschr(const wchar_t* __s, wchar_t __c) {return (wchar_t*)wcschr(__s, __c);}
144 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
145 const wchar_t* wcschr(const wchar_t* __s, wchar_t __c) {return __libcpp_wcschr(__s, __c);}
146 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
147       wchar_t* wcschr(      wchar_t* __s, wchar_t __c) {return __libcpp_wcschr(__s, __c);}
148 
149 inline _LIBCPP_INLINE_VISIBILITY
150 wchar_t* __libcpp_wcspbrk(const wchar_t* __s1, const wchar_t* __s2) {return (wchar_t*)wcspbrk(__s1, __s2);}
151 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
152 const wchar_t* wcspbrk(const wchar_t* __s1, const wchar_t* __s2) {return __libcpp_wcspbrk(__s1, __s2);}
153 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
154       wchar_t* wcspbrk(      wchar_t* __s1, const wchar_t* __s2) {return __libcpp_wcspbrk(__s1, __s2);}
155 
156 inline _LIBCPP_INLINE_VISIBILITY
157 wchar_t* __libcpp_wcsrchr(const wchar_t* __s, wchar_t __c) {return (wchar_t*)wcsrchr(__s, __c);}
158 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
159 const wchar_t* wcsrchr(const wchar_t* __s, wchar_t __c) {return __libcpp_wcsrchr(__s, __c);}
160 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
161       wchar_t* wcsrchr(      wchar_t* __s, wchar_t __c) {return __libcpp_wcsrchr(__s, __c);}
162 
163 inline _LIBCPP_INLINE_VISIBILITY
164 wchar_t* __libcpp_wcsstr(const wchar_t* __s1, const wchar_t* __s2) {return (wchar_t*)wcsstr(__s1, __s2);}
165 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
166 const wchar_t* wcsstr(const wchar_t* __s1, const wchar_t* __s2) {return __libcpp_wcsstr(__s1, __s2);}
167 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
168       wchar_t* wcsstr(      wchar_t* __s1, const wchar_t* __s2) {return __libcpp_wcsstr(__s1, __s2);}
169 
170 inline _LIBCPP_INLINE_VISIBILITY
171 wchar_t* __libcpp_wmemchr(const wchar_t* __s, wchar_t __c, size_t __n) {return (wchar_t*)wmemchr(__s, __c, __n);}
172 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
173 const wchar_t* wmemchr(const wchar_t* __s, wchar_t __c, size_t __n) {return __libcpp_wmemchr(__s, __c, __n);}
174 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
175       wchar_t* wmemchr(      wchar_t* __s, wchar_t __c, size_t __n) {return __libcpp_wmemchr(__s, __c, __n);}
176 }
177 #endif
178 
179 #if defined(__cplusplus) && (defined(_LIBCPP_MSVCRT_LIKE) || defined(__MVS__))
180 extern "C" {
181 size_t mbsnrtowcs(wchar_t *__restrict __dst, const char **__restrict __src,
182                   size_t __nmc, size_t __len, mbstate_t *__restrict __ps);
183 size_t wcsnrtombs(char *__restrict __dst, const wchar_t **__restrict __src,
184                   size_t __nwc, size_t __len, mbstate_t *__restrict __ps);
185 }  // extern "C"
186 #endif  // __cplusplus && (_LIBCPP_MSVCRT || __MVS__)
187 
188 #endif // _LIBCPP_WCHAR_H
189