wchar.h 8.7 KB

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  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. #if defined(__need_wint_t) || defined(__need_mbstate_t)
  10. #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
  11. # pragma GCC system_header
  12. #endif
  13. #include_next <wchar.h>
  14. #elif !defined(_LIBCPP_WCHAR_H)
  15. #define _LIBCPP_WCHAR_H
  16. /*
  17. wchar.h synopsis
  18. Macros:
  19. NULL
  20. WCHAR_MAX
  21. WCHAR_MIN
  22. WEOF
  23. Types:
  24. mbstate_t
  25. size_t
  26. tm
  27. wint_t
  28. int fwprintf(FILE* restrict stream, const wchar_t* restrict format, ...);
  29. int fwscanf(FILE* restrict stream, const wchar_t* restrict format, ...);
  30. int swprintf(wchar_t* restrict s, size_t n, const wchar_t* restrict format, ...);
  31. int swscanf(const wchar_t* restrict s, const wchar_t* restrict format, ...);
  32. int vfwprintf(FILE* restrict stream, const wchar_t* restrict format, va_list arg);
  33. int vfwscanf(FILE* restrict stream, const wchar_t* restrict format, va_list arg); // C99
  34. int vswprintf(wchar_t* restrict s, size_t n, const wchar_t* restrict format, va_list arg);
  35. int vswscanf(const wchar_t* restrict s, const wchar_t* restrict format, va_list arg); // C99
  36. int vwprintf(const wchar_t* restrict format, va_list arg);
  37. int vwscanf(const wchar_t* restrict format, va_list arg); // C99
  38. int wprintf(const wchar_t* restrict format, ...);
  39. int wscanf(const wchar_t* restrict format, ...);
  40. wint_t fgetwc(FILE* stream);
  41. wchar_t* fgetws(wchar_t* restrict s, int n, FILE* restrict stream);
  42. wint_t fputwc(wchar_t c, FILE* stream);
  43. int fputws(const wchar_t* restrict s, FILE* restrict stream);
  44. int fwide(FILE* stream, int mode);
  45. wint_t getwc(FILE* stream);
  46. wint_t getwchar();
  47. wint_t putwc(wchar_t c, FILE* stream);
  48. wint_t putwchar(wchar_t c);
  49. wint_t ungetwc(wint_t c, FILE* stream);
  50. double wcstod(const wchar_t* restrict nptr, wchar_t** restrict endptr);
  51. float wcstof(const wchar_t* restrict nptr, wchar_t** restrict endptr); // C99
  52. long double wcstold(const wchar_t* restrict nptr, wchar_t** restrict endptr); // C99
  53. long wcstol(const wchar_t* restrict nptr, wchar_t** restrict endptr, int base);
  54. long long wcstoll(const wchar_t* restrict nptr, wchar_t** restrict endptr, int base); // C99
  55. unsigned long wcstoul(const wchar_t* restrict nptr, wchar_t** restrict endptr, int base);
  56. unsigned long long wcstoull(const wchar_t* restrict nptr, wchar_t** restrict endptr, int base); // C99
  57. wchar_t* wcscpy(wchar_t* restrict s1, const wchar_t* restrict s2);
  58. wchar_t* wcsncpy(wchar_t* restrict s1, const wchar_t* restrict s2, size_t n);
  59. wchar_t* wcscat(wchar_t* restrict s1, const wchar_t* restrict s2);
  60. wchar_t* wcsncat(wchar_t* restrict s1, const wchar_t* restrict s2, size_t n);
  61. int wcscmp(const wchar_t* s1, const wchar_t* s2);
  62. int wcscoll(const wchar_t* s1, const wchar_t* s2);
  63. int wcsncmp(const wchar_t* s1, const wchar_t* s2, size_t n);
  64. size_t wcsxfrm(wchar_t* restrict s1, const wchar_t* restrict s2, size_t n);
  65. const wchar_t* wcschr(const wchar_t* s, wchar_t c);
  66. wchar_t* wcschr( wchar_t* s, wchar_t c);
  67. size_t wcscspn(const wchar_t* s1, const wchar_t* s2);
  68. size_t wcslen(const wchar_t* s);
  69. const wchar_t* wcspbrk(const wchar_t* s1, const wchar_t* s2);
  70. wchar_t* wcspbrk( wchar_t* s1, const wchar_t* s2);
  71. const wchar_t* wcsrchr(const wchar_t* s, wchar_t c);
  72. wchar_t* wcsrchr( wchar_t* s, wchar_t c);
  73. size_t wcsspn(const wchar_t* s1, const wchar_t* s2);
  74. const wchar_t* wcsstr(const wchar_t* s1, const wchar_t* s2);
  75. wchar_t* wcsstr( wchar_t* s1, const wchar_t* s2);
  76. wchar_t* wcstok(wchar_t* restrict s1, const wchar_t* restrict s2, wchar_t** restrict ptr);
  77. const wchar_t* wmemchr(const wchar_t* s, wchar_t c, size_t n);
  78. wchar_t* wmemchr( wchar_t* s, wchar_t c, size_t n);
  79. int wmemcmp(wchar_t* restrict s1, const wchar_t* restrict s2, size_t n);
  80. wchar_t* wmemcpy(wchar_t* restrict s1, const wchar_t* restrict s2, size_t n);
  81. wchar_t* wmemmove(wchar_t* s1, const wchar_t* s2, size_t n);
  82. wchar_t* wmemset(wchar_t* s, wchar_t c, size_t n);
  83. size_t wcsftime(wchar_t* restrict s, size_t maxsize, const wchar_t* restrict format,
  84. const tm* restrict timeptr);
  85. wint_t btowc(int c);
  86. int wctob(wint_t c);
  87. int mbsinit(const mbstate_t* ps);
  88. size_t mbrlen(const char* restrict s, size_t n, mbstate_t* restrict ps);
  89. size_t mbrtowc(wchar_t* restrict pwc, const char* restrict s, size_t n, mbstate_t* restrict ps);
  90. size_t wcrtomb(char* restrict s, wchar_t wc, mbstate_t* restrict ps);
  91. size_t mbsrtowcs(wchar_t* restrict dst, const char** restrict src, size_t len,
  92. mbstate_t* restrict ps);
  93. size_t wcsrtombs(char* restrict dst, const wchar_t** restrict src, size_t len,
  94. mbstate_t* restrict ps);
  95. */
  96. #include <__config>
  97. #include <stddef.h>
  98. #if defined(_LIBCPP_HAS_NO_WIDE_CHARACTERS)
  99. # error "The <wchar.h> header is not supported since libc++ has been configured with LIBCXX_ENABLE_WIDE_CHARACTERS disabled"
  100. #endif
  101. #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
  102. # pragma GCC system_header
  103. #endif
  104. // We define this here to support older versions of glibc <wchar.h> that do
  105. // not define this for clang.
  106. #ifdef __cplusplus
  107. #define __CORRECT_ISO_CPP_WCHAR_H_PROTO
  108. #endif
  109. # if __has_include_next(<wchar.h>)
  110. # include_next <wchar.h>
  111. # else
  112. # include <__mbstate_t.h> // make sure we have mbstate_t regardless of the existence of <wchar.h>
  113. # endif
  114. // Determine whether we have const-correct overloads for wcschr and friends.
  115. #if defined(_WCHAR_H_CPLUSPLUS_98_CONFORMANCE_)
  116. # define _LIBCPP_WCHAR_H_HAS_CONST_OVERLOADS 1
  117. #elif defined(__GLIBC_PREREQ)
  118. # if __GLIBC_PREREQ(2, 10)
  119. # define _LIBCPP_WCHAR_H_HAS_CONST_OVERLOADS 1
  120. # endif
  121. #elif defined(_LIBCPP_MSVCRT)
  122. # if defined(_CRT_CONST_CORRECT_OVERLOADS)
  123. # define _LIBCPP_WCHAR_H_HAS_CONST_OVERLOADS 1
  124. # endif
  125. #endif
  126. #if defined(__cplusplus) && !defined(_LIBCPP_WCHAR_H_HAS_CONST_OVERLOADS) && defined(_LIBCPP_PREFERRED_OVERLOAD)
  127. extern "C++" {
  128. inline _LIBCPP_INLINE_VISIBILITY
  129. wchar_t* __libcpp_wcschr(const wchar_t* __s, wchar_t __c) {return (wchar_t*)wcschr(__s, __c);}
  130. inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
  131. const wchar_t* wcschr(const wchar_t* __s, wchar_t __c) {return __libcpp_wcschr(__s, __c);}
  132. inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
  133. wchar_t* wcschr( wchar_t* __s, wchar_t __c) {return __libcpp_wcschr(__s, __c);}
  134. inline _LIBCPP_INLINE_VISIBILITY
  135. wchar_t* __libcpp_wcspbrk(const wchar_t* __s1, const wchar_t* __s2) {return (wchar_t*)wcspbrk(__s1, __s2);}
  136. inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
  137. const wchar_t* wcspbrk(const wchar_t* __s1, const wchar_t* __s2) {return __libcpp_wcspbrk(__s1, __s2);}
  138. inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
  139. wchar_t* wcspbrk( wchar_t* __s1, const wchar_t* __s2) {return __libcpp_wcspbrk(__s1, __s2);}
  140. inline _LIBCPP_INLINE_VISIBILITY
  141. wchar_t* __libcpp_wcsrchr(const wchar_t* __s, wchar_t __c) {return (wchar_t*)wcsrchr(__s, __c);}
  142. inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
  143. const wchar_t* wcsrchr(const wchar_t* __s, wchar_t __c) {return __libcpp_wcsrchr(__s, __c);}
  144. inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
  145. wchar_t* wcsrchr( wchar_t* __s, wchar_t __c) {return __libcpp_wcsrchr(__s, __c);}
  146. inline _LIBCPP_INLINE_VISIBILITY
  147. wchar_t* __libcpp_wcsstr(const wchar_t* __s1, const wchar_t* __s2) {return (wchar_t*)wcsstr(__s1, __s2);}
  148. inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
  149. const wchar_t* wcsstr(const wchar_t* __s1, const wchar_t* __s2) {return __libcpp_wcsstr(__s1, __s2);}
  150. inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
  151. wchar_t* wcsstr( wchar_t* __s1, const wchar_t* __s2) {return __libcpp_wcsstr(__s1, __s2);}
  152. inline _LIBCPP_INLINE_VISIBILITY
  153. wchar_t* __libcpp_wmemchr(const wchar_t* __s, wchar_t __c, size_t __n) {return (wchar_t*)wmemchr(__s, __c, __n);}
  154. inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
  155. const wchar_t* wmemchr(const wchar_t* __s, wchar_t __c, size_t __n) {return __libcpp_wmemchr(__s, __c, __n);}
  156. inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
  157. wchar_t* wmemchr( wchar_t* __s, wchar_t __c, size_t __n) {return __libcpp_wmemchr(__s, __c, __n);}
  158. }
  159. #endif
  160. #if defined(__cplusplus) && (defined(_LIBCPP_MSVCRT_LIKE) || defined(__MVS__))
  161. extern "C" {
  162. size_t mbsnrtowcs(wchar_t *__restrict __dst, const char **__restrict __src,
  163. size_t __nmc, size_t __len, mbstate_t *__restrict __ps);
  164. size_t wcsnrtombs(char *__restrict __dst, const wchar_t **__restrict __src,
  165. size_t __nwc, size_t __len, mbstate_t *__restrict __ps);
  166. } // extern "C"
  167. #endif // __cplusplus && (_LIBCPP_MSVCRT || __MVS__)
  168. #endif // _LIBCPP_WCHAR_H