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76 lines
2.6 KiB
C
76 lines
2.6 KiB
C
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <string.h>
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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/* Do what newlib does to appease GCC's --with-newlib option. */
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#define _U 01
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#define _L 02
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#define _N 04
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#define _S 010
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#define _P 020
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#define _C 040
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#define _X 0100
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#define _B 0200
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extern const char _ctype_[256];
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int tolower(int);
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int toupper(int);
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int isalnum(int);
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int isalpha(int);
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int iscntrl(int);
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int isdigit(int);
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int isxdigit(int);
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int isspace(int);
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int ispunct(int);
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int isprint(int);
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int isgraph(int);
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int islower(int);
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int isupper(int);
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#define isalnum(c) (_ctype_[(unsigned char)(c)] & (_U | _L | _N))
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#define isalpha(c) (_ctype_[(unsigned char)(c)] & (_U | _L))
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#define iscntrl(c) (_ctype_[(unsigned char)(c)] & (_C))
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#define isdigit(c) (_ctype_[(unsigned char)(c)] & (_N))
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#define isxdigit(c) (_ctype_[(unsigned char)(c)] & (_N | _X))
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#define isspace(c) (_ctype_[(unsigned char)(c)] & (_S))
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#define ispunct(c) (_ctype_[(unsigned char)(c)] & (_P))
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#define isprint(c) (_ctype_[(unsigned char)(c)] & (_P | _U | _L | _N | _B))
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#define isgraph(c) (_ctype_[(unsigned char)(c)] & (_P | _U | _L | _N))
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#define islower(c) ((_ctype_[(unsigned char)(c)] & (_U | _L)) == _L)
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#define isupper(c) ((_ctype_[(unsigned char)(c)] & (_U | _L)) == _U)
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#define isascii(c) ((unsigned)c <= 127)
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#define toascii(c) ((c)&127)
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__END_DECLS
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