libstdc++
cwctype
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// -*- C++ -*- forwarding header.
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// Copyright (C) 1997-2025 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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/** @file include/cwctype
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* This is a Standard C++ Library file. You should @c \#include this file
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* in your programs, rather than any of the @a *.h implementation files.
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*
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* This is the C++ version of the Standard C Library header @c wctype.h,
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* and its contents are (mostly) the same as that header, but are all
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* contained in the namespace @c std (except for names which are defined
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* as macros in C).
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*/
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//
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// ISO C++ 14882: <cwctype>
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//
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#ifndef _GLIBCXX_CWCTYPE
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#define _GLIBCXX_CWCTYPE 1
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#ifdef _GLIBCXX_SYSHDR
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#pragma GCC system_header
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#endif
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#include <
bits/c++config.h
>
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#if _GLIBCXX_HAVE_WCTYPE_H
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#if __GLIBC__ == 2 && __GLIBC_MINOR__ < 10
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// Work around glibc BZ 9694
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#include <stddef.h>
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#endif
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#include <wctype.h>
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#endif
// _GLIBCXX_HAVE_WCTYPE_H
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// Get rid of those macros defined in <wctype.h> in lieu of real functions.
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#undef iswalnum
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#undef iswalpha
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#if _GLIBCXX_HAVE_ISWBLANK
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# undef iswblank
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#endif
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#undef iswcntrl
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#undef iswctype
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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 towctrans
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#undef towlower
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#undef towupper
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#undef wctrans
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#undef wctype
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#if _GLIBCXX_USE_WCHAR_T
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namespace
std
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{
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using ::wctrans_t;
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using ::wctype_t;
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using ::wint_t;
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using ::iswalnum;
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using ::iswalpha;
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#if _GLIBCXX_HAVE_ISWBLANK
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using ::iswblank;
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#endif
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using ::iswcntrl;
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using ::iswctype;
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using ::iswdigit;
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using ::iswgraph;
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using ::iswlower;
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using ::iswprint;
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using ::iswpunct;
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using ::iswspace;
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using ::iswupper;
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using ::iswxdigit;
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using ::towctrans;
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using ::towlower;
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using ::towupper;
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using ::wctrans;
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using ::wctype;
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}
// namespace
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#endif
//_GLIBCXX_USE_WCHAR_T
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#endif
// _GLIBCXX_CWCTYPE
c++config.h
std
ISO C++ entities toplevel namespace is std.
cwctype
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