| // -*- C++ -*- |
| //===--------------------------- wctype.h ---------------------------------===// |
| // |
| // 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_WCTYPE_H |
| #define _LIBCPP_WCTYPE_H |
| |
| /* |
| wctype.h synopsis |
| |
| Macros: |
| |
| WEOF |
| |
| Types: |
| |
| wint_t |
| wctrans_t |
| wctype_t |
| |
| int iswalnum(wint_t wc); |
| int iswalpha(wint_t wc); |
| int iswblank(wint_t wc); // C99 |
| int iswcntrl(wint_t wc); |
| int iswdigit(wint_t wc); |
| int iswgraph(wint_t wc); |
| int iswlower(wint_t wc); |
| int iswprint(wint_t wc); |
| int iswpunct(wint_t wc); |
| int iswspace(wint_t wc); |
| int iswupper(wint_t wc); |
| int iswxdigit(wint_t wc); |
| int iswctype(wint_t wc, wctype_t desc); |
| wctype_t wctype(const char* property); |
| wint_t towlower(wint_t wc); |
| wint_t towupper(wint_t wc); |
| wint_t towctrans(wint_t wc, wctrans_t desc); |
| wctrans_t wctrans(const char* property); |
| |
| */ |
| |
| #include <__config> |
| |
| #if defined(_LIBCPP_HAS_NO_WIDE_CHARACTERS) |
| # error "The <wctype.h> header is not supported since libc++ has been configured with LIBCXX_ENABLE_WIDE_CHARACTERS disabled" |
| #endif |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| #pragma GCC system_header |
| #endif |
| |
| // TODO: |
| // In the future, we should unconditionally include_next <wctype.h> here and instead |
| // have a mode under which the library does not need libc++'s <wctype.h> or <cwctype> |
| // at all (i.e. a mode without wchar_t). As it stands, we need to do that to completely |
| // bypass the using declarations in <cwctype> when we did not include <wctype.h>. |
| // Otherwise, a using declaration like `using ::wint_t` in <cwctype> will refer to |
| // nothing (with using_if_exists), and if we include another header that defines one |
| // of these declarations (e.g. <wchar.h>), the second `using ::wint_t` with using_if_exists |
| // will fail because it does not refer to the same declaration. |
| #if __has_include_next(<wctype.h>) |
| # include_next <wctype.h> |
| # define _LIBCPP_INCLUDED_C_LIBRARY_WCTYPE_H |
| #endif |
| |
| #ifdef __cplusplus |
| |
| #undef iswalnum |
| #undef iswalpha |
| #undef iswblank |
| #undef iswcntrl |
| #undef iswdigit |
| #undef iswgraph |
| #undef iswlower |
| #undef iswprint |
| #undef iswpunct |
| #undef iswspace |
| #undef iswupper |
| #undef iswxdigit |
| #undef iswctype |
| #undef wctype |
| #undef towlower |
| #undef towupper |
| #undef towctrans |
| #undef wctrans |
| |
| #endif // __cplusplus |
| |
| #endif // _LIBCPP_WCTYPE_H |