95 lines
2.4 KiB
C++
95 lines
2.4 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_WCTYPE_H
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#define _LIBCPP_WCTYPE_H
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/*
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wctype.h synopsis
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Macros:
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WEOF
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Types:
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wint_t
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wctrans_t
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wctype_t
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int iswalnum(wint_t wc);
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int iswalpha(wint_t wc);
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int iswblank(wint_t wc); // C99
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int iswcntrl(wint_t wc);
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int iswdigit(wint_t wc);
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int iswgraph(wint_t wc);
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int iswlower(wint_t wc);
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int iswprint(wint_t wc);
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int iswpunct(wint_t wc);
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int iswspace(wint_t wc);
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int iswupper(wint_t wc);
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int iswxdigit(wint_t wc);
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int iswctype(wint_t wc, wctype_t desc);
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wctype_t wctype(const char* property);
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wint_t towlower(wint_t wc);
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wint_t towupper(wint_t wc);
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wint_t towctrans(wint_t wc, wctrans_t desc);
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wctrans_t wctrans(const char* property);
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*/
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#include <__config>
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#if defined(_LIBCPP_HAS_NO_WIDE_CHARACTERS)
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# error "The <wctype.h> header is not supported since libc++ has been configured with LIBCXX_ENABLE_WIDE_CHARACTERS disabled"
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#endif
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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// TODO:
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// In the future, we should unconditionally include_next <wctype.h> here and instead
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// have a mode under which the library does not need libc++'s <wctype.h> or <cwctype>
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// at all (i.e. a mode without wchar_t). As it stands, we need to do that to completely
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// bypass the using declarations in <cwctype> when we did not include <wctype.h>.
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// Otherwise, a using declaration like `using ::wint_t` in <cwctype> will refer to
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// nothing (with using_if_exists), and if we include another header that defines one
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// of these declarations (e.g. <wchar.h>), the second `using ::wint_t` with using_if_exists
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// will fail because it does not refer to the same declaration.
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#if __has_include_next(<wctype.h>)
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# include_next <wctype.h>
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# define _LIBCPP_INCLUDED_C_LIBRARY_WCTYPE_H
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#endif
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#ifdef __cplusplus
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#undef iswalnum
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#undef iswalpha
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#undef iswblank
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#undef iswcntrl
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#undef iswdigit
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#undef iswgraph
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#undef iswlower
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#undef iswprint
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#undef iswpunct
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#undef iswspace
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#undef iswupper
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#undef iswxdigit
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#undef iswctype
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#undef wctype
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#undef towlower
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#undef towupper
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#undef towctrans
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#undef wctrans
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#endif // __cplusplus
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#endif // _LIBCPP_WCTYPE_H
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