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1ec59f28ce
These are supposed to be both functions and macros. I'm not sure how to provide the functions at the same time as the macros, as they collide with each other and cause compile errors. However, some ports fully expect them to be functions. For example, OpenSSH stores them into structures as function pointers.
107 lines
2.8 KiB
C
107 lines
2.8 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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static inline int isalnum(int c)
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{
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return (_ctype_[(unsigned char)(c)] & (_U | _L | _N));
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}
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static inline int isalpha(int c)
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{
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return (_ctype_[(unsigned char)(c)] & (_U | _L));
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}
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static inline int iscntrl(int c)
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{
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return (_ctype_[(unsigned char)(c)] & (_C));
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}
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static inline int isdigit(int c)
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{
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return (_ctype_[(unsigned char)(c)] & (_N));
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}
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static inline int isxdigit(int c)
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{
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return (_ctype_[(unsigned char)(c)] & (_N | _X));
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}
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static inline int isspace(int c)
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{
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return (_ctype_[(unsigned char)(c)] & (_S));
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}
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static inline int ispunct(int c)
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{
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return (_ctype_[(unsigned char)(c)] & (_P));
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}
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static inline int isprint(int c)
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{
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return (_ctype_[(unsigned char)(c)] & (_P | _U | _L | _N | _B));
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}
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static inline int isgraph(int c)
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{
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return (_ctype_[(unsigned char)(c)] & (_P | _U | _L | _N));
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}
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static inline int islower(int c)
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{
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return ((_ctype_[(unsigned char)(c)] & (_U | _L)) == _L);
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}
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static inline int isupper(int c)
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{
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return ((_ctype_[(unsigned char)(c)] & (_U | _L)) == _U);
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}
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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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