| // -*- C++ -*- |
| //===----------------------------------------------------------------------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef _LIBCPP_CWCHAR |
| #define _LIBCPP_CWCHAR |
| |
| /* |
| cwchar synopsis |
| |
| Macros: |
| |
| NULL |
| WCHAR_MAX |
| WCHAR_MIN |
| WEOF |
| |
| namespace std |
| { |
| |
| 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); |
| |
| } // std |
| |
| */ |
| |
| #include <__config> |
| #include <__type_traits/copy_cv.h> |
| #include <__type_traits/is_constant_evaluated.h> |
| #include <__type_traits/is_equality_comparable.h> |
| #include <__type_traits/is_same.h> |
| #include <__type_traits/remove_cv.h> |
| #include <cwctype> |
| |
| #include <wchar.h> |
| |
| #ifndef _LIBCPP_WCHAR_H |
| # error <cwchar> tried including <wchar.h> but didn't find libc++'s <wchar.h> header. \ |
| This usually means that your header search paths are not configured properly. \ |
| The header search paths should contain the C++ Standard Library headers before \ |
| any C Standard Library, and you are probably using compiler flags that make that \ |
| not be the case. |
| #endif |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| # pragma GCC system_header |
| #endif |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| using ::mbstate_t _LIBCPP_USING_IF_EXISTS; |
| using ::size_t _LIBCPP_USING_IF_EXISTS; |
| using ::tm _LIBCPP_USING_IF_EXISTS; |
| using ::wint_t _LIBCPP_USING_IF_EXISTS; |
| using ::FILE _LIBCPP_USING_IF_EXISTS; |
| using ::fwprintf _LIBCPP_USING_IF_EXISTS; |
| using ::fwscanf _LIBCPP_USING_IF_EXISTS; |
| using ::swprintf _LIBCPP_USING_IF_EXISTS; |
| using ::vfwprintf _LIBCPP_USING_IF_EXISTS; |
| using ::vswprintf _LIBCPP_USING_IF_EXISTS; |
| using ::swscanf _LIBCPP_USING_IF_EXISTS; |
| using ::vfwscanf _LIBCPP_USING_IF_EXISTS; |
| using ::vswscanf _LIBCPP_USING_IF_EXISTS; |
| using ::fgetwc _LIBCPP_USING_IF_EXISTS; |
| using ::fgetws _LIBCPP_USING_IF_EXISTS; |
| using ::fputwc _LIBCPP_USING_IF_EXISTS; |
| using ::fputws _LIBCPP_USING_IF_EXISTS; |
| using ::fwide _LIBCPP_USING_IF_EXISTS; |
| using ::getwc _LIBCPP_USING_IF_EXISTS; |
| using ::putwc _LIBCPP_USING_IF_EXISTS; |
| using ::ungetwc _LIBCPP_USING_IF_EXISTS; |
| using ::wcstod _LIBCPP_USING_IF_EXISTS; |
| using ::wcstof _LIBCPP_USING_IF_EXISTS; |
| using ::wcstold _LIBCPP_USING_IF_EXISTS; |
| using ::wcstol _LIBCPP_USING_IF_EXISTS; |
| using ::wcstoll _LIBCPP_USING_IF_EXISTS; |
| using ::wcstoul _LIBCPP_USING_IF_EXISTS; |
| using ::wcstoull _LIBCPP_USING_IF_EXISTS; |
| using ::wcscpy _LIBCPP_USING_IF_EXISTS; |
| using ::wcsncpy _LIBCPP_USING_IF_EXISTS; |
| using ::wcscat _LIBCPP_USING_IF_EXISTS; |
| using ::wcsncat _LIBCPP_USING_IF_EXISTS; |
| using ::wcscmp _LIBCPP_USING_IF_EXISTS; |
| using ::wcscoll _LIBCPP_USING_IF_EXISTS; |
| using ::wcsncmp _LIBCPP_USING_IF_EXISTS; |
| using ::wcsxfrm _LIBCPP_USING_IF_EXISTS; |
| using ::wcschr _LIBCPP_USING_IF_EXISTS; |
| using ::wcspbrk _LIBCPP_USING_IF_EXISTS; |
| using ::wcsrchr _LIBCPP_USING_IF_EXISTS; |
| using ::wcsstr _LIBCPP_USING_IF_EXISTS; |
| using ::wmemchr _LIBCPP_USING_IF_EXISTS; |
| using ::wcscspn _LIBCPP_USING_IF_EXISTS; |
| using ::wcslen _LIBCPP_USING_IF_EXISTS; |
| using ::wcsspn _LIBCPP_USING_IF_EXISTS; |
| using ::wcstok _LIBCPP_USING_IF_EXISTS; |
| using ::wmemcmp _LIBCPP_USING_IF_EXISTS; |
| using ::wmemcpy _LIBCPP_USING_IF_EXISTS; |
| using ::wmemmove _LIBCPP_USING_IF_EXISTS; |
| using ::wmemset _LIBCPP_USING_IF_EXISTS; |
| using ::wcsftime _LIBCPP_USING_IF_EXISTS; |
| using ::btowc _LIBCPP_USING_IF_EXISTS; |
| using ::wctob _LIBCPP_USING_IF_EXISTS; |
| using ::mbsinit _LIBCPP_USING_IF_EXISTS; |
| using ::mbrlen _LIBCPP_USING_IF_EXISTS; |
| using ::mbrtowc _LIBCPP_USING_IF_EXISTS; |
| using ::wcrtomb _LIBCPP_USING_IF_EXISTS; |
| using ::mbsrtowcs _LIBCPP_USING_IF_EXISTS; |
| using ::wcsrtombs _LIBCPP_USING_IF_EXISTS; |
| |
| using ::getwchar _LIBCPP_USING_IF_EXISTS; |
| using ::vwscanf _LIBCPP_USING_IF_EXISTS; |
| using ::wscanf _LIBCPP_USING_IF_EXISTS; |
| |
| using ::putwchar _LIBCPP_USING_IF_EXISTS; |
| using ::vwprintf _LIBCPP_USING_IF_EXISTS; |
| using ::wprintf _LIBCPP_USING_IF_EXISTS; |
| |
| inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 size_t __constexpr_wcslen(const wchar_t* __str) { |
| #if __has_builtin(__builtin_wcslen) |
| return __builtin_wcslen(__str); |
| #else |
| if (!__libcpp_is_constant_evaluated()) |
| return std::wcslen(__str); |
| |
| size_t __len = 0; |
| for (; *__str != L'\0'; ++__str) |
| ++__len; |
| return __len; |
| #endif |
| } |
| |
| inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 int |
| __constexpr_wmemcmp(const wchar_t* __lhs, const wchar_t* __rhs, size_t __count) { |
| #if __has_builtin(__builtin_wmemcmp) |
| return __builtin_wmemcmp(__lhs, __rhs, __count); |
| #else |
| if (!__libcpp_is_constant_evaluated()) |
| return std::wmemcmp(__lhs, __rhs, __count); |
| |
| for (; __count; --__count, ++__lhs, ++__rhs) { |
| if (*__lhs < *__rhs) |
| return -1; |
| if (*__rhs < *__lhs) |
| return 1; |
| } |
| return 0; |
| #endif |
| } |
| |
| template <class _Tp, class _Up> |
| _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 _Tp* __constexpr_wmemchr(_Tp* __str, _Up __value, size_t __count) { |
| static_assert(sizeof(_Tp) == sizeof(wchar_t)&& _LIBCPP_ALIGNOF(_Tp) >= _LIBCPP_ALIGNOF(wchar_t) && |
| __libcpp_is_trivially_equality_comparable<_Tp, _Tp>::value, |
| "Calling wmemchr on non-trivially equality comparable types is unsafe."); |
| |
| #if __has_builtin(__builtin_wmemchr) |
| if (!__libcpp_is_constant_evaluated()) { |
| wchar_t __value_buffer = 0; |
| __builtin_memcpy(&__value_buffer, &__value, sizeof(wchar_t)); |
| return reinterpret_cast<_Tp*>( |
| __builtin_wmemchr(reinterpret_cast<__copy_cv_t<_Tp, wchar_t>*>(__str), __value_buffer, __count)); |
| } |
| # if _LIBCPP_STD_VER >= 17 |
| else if constexpr (is_same_v<remove_cv_t<_Tp>, wchar_t>) |
| return __builtin_wmemchr(__str, __value, __count); |
| # endif |
| #endif // __has_builtin(__builtin_wmemchr) |
| |
| for (; __count; --__count) { |
| if (*__str == __value) |
| return __str; |
| ++__str; |
| } |
| return nullptr; |
| } |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20 |
| # include <cstddef> |
| #endif |
| |
| #endif // _LIBCPP_CWCHAR |