c%2B%2B/v1/wctype.h

0001 // -*- C++ -*-
0002 //===----------------------------------------------------------------------===//
0003 //
0004 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
0005 // See https://llvm.org/LICENSE.txt for license information.
0006 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
0007 //
0008 //===----------------------------------------------------------------------===//
0009
0010 #ifndef _LIBCPP_WCTYPE_H
0011 #define _LIBCPP_WCTYPE_H
0012
0013 /*
0014     wctype.h synopsis
0015
0016 Macros:
0017
0018     WEOF
0019
0020 Types:
0021
0022     wint_t
0023     wctrans_t
0024     wctype_t
0025
0026 int iswalnum(wint_t wc);
0027 int iswalpha(wint_t wc);
0028 int iswblank(wint_t wc);  // C99
0029 int iswcntrl(wint_t wc);
0030 int iswdigit(wint_t wc);
0031 int iswgraph(wint_t wc);
0032 int iswlower(wint_t wc);
0033 int iswprint(wint_t wc);
0034 int iswpunct(wint_t wc);
0035 int iswspace(wint_t wc);
0036 int iswupper(wint_t wc);
0037 int iswxdigit(wint_t wc);
0038 int iswctype(wint_t wc, wctype_t desc);
0039 wctype_t wctype(const char* property);
0040 wint_t towlower(wint_t wc);
0041 wint_t towupper(wint_t wc);
0042 wint_t towctrans(wint_t wc, wctrans_t desc);
0043 wctrans_t wctrans(const char* property);
0044
0045 */
0046
0047 #if defined(__cplusplus) && __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
0048 #  include <__cxx03/wctype.h>
0049 #else
0050 #  include <__config>
0051
0052 #  if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
0053 #    pragma GCC system_header
0054 #  endif
0055
0056 // TODO:
0057 // In the future, we should unconditionally include_next <wctype.h> here and instead
0058 // have a mode under which the library does not need libc++'s <wctype.h> or <cwctype>
0059 // at all (i.e. a mode without wchar_t). As it stands, we need to do that to completely
0060 // bypass the using declarations in <cwctype> when we did not include <wctype.h>.
0061 // Otherwise, a using declaration like `using ::wint_t` in <cwctype> will refer to
0062 // nothing (with using_if_exists), and if we include another header that defines one
0063 // of these declarations (e.g. <wchar.h>), the second `using ::wint_t` with using_if_exists
0064 // will fail because it does not refer to the same declaration.
0065 #  if __has_include_next(<wctype.h>)
0066 #    include_next <wctype.h>
0067 #    define _LIBCPP_INCLUDED_C_LIBRARY_WCTYPE_H
0068 #  endif
0069
0070 #  ifdef __cplusplus
0071
0072 #    undef iswalnum
0073 #    undef iswalpha
0074 #    undef iswblank
0075 #    undef iswcntrl
0076 #    undef iswdigit
0077 #    undef iswgraph
0078 #    undef iswlower
0079 #    undef iswprint
0080 #    undef iswpunct
0081 #    undef iswspace
0082 #    undef iswupper
0083 #    undef iswxdigit
0084 #    undef iswctype
0085 #    undef wctype
0086 #    undef towlower
0087 #    undef towupper
0088 #    undef towctrans
0089 #    undef wctrans
0090
0091 #  endif // __cplusplus
0092 #endif   // defined(__cplusplus) && __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
0093
0094 #endif // _LIBCPP_WCTYPE_H