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/*-------------------------------------------------------------------------
ctype.h - ANSI functions forward declarations
Copyright (C) 1998, Sandeep Dutta . sandeep.dutta@usa.net
Revisions:
1.0 - June.1.2000 1.0 - Bela Torok / bela.torok@kssg.ch
order: function definitions -> macros
corretced macro: isalpha(c)
added macros: _tolower(c), _toupper(c), tolower(c), toupper(c) toascii(c)
This library is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2.1, or (at your option) any
later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this library; see the file COPYING. If not, write to the
Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA.
As a special exception, if you link this library with other files,
some of which are compiled with SDCC, to produce an executable,
this library does not by itself cause the resulting executable to
be covered by the GNU General Public License. This exception does
not however invalidate any other reasons why the executable file
might be covered by the GNU General Public License.
-------------------------------------------------------------------------*/
#ifndef __SDC51_CTYPE_H
#define __SDC51_CTYPE_H 1
#include <sdcc-lib.h>
extern char iscntrl (unsigned char ) ;
extern char isdigit (unsigned char ) ;
extern char isgraph (unsigned char ) ;
extern char islower (unsigned char ) ;
extern char isupper (unsigned char ) ;
extern char isprint (unsigned char ) ;
extern char ispunct (unsigned char ) ;
extern char isspace (unsigned char ) ;
extern char isxdigit (unsigned char ) ;
#define isalnum(c) (isalpha(c) || isdigit(c))
#define isalpha(c) (isupper(c) || islower(c))
/* ANSI versions of _tolower & _toupper
#define _tolower(c) ((c) - ('a' - 'A'))
#define _toupper(c) ((c) + ('a' - 'A'))
*/
/* The _tolower & _toupper functions below can applied to any
alpha characters regardless of the case (upper or lower) */
#define _tolower(c) (char)(((c) | (char)('a' - 'A')))
#define _toupper(c) (char)(((c) & ~(char)('a' - 'A')))
#define tolower(c) ((isupper(c)) ? _tolower(c) : (c))
#define toupper(c) ((islower(c)) ? _toupper(c) : (c))
#define toascii(c) ((c) & 0x7F)
#endif
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