ctype.h

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/*	ctype.h

	Defines the ctype macros.

        Copyright (c) Borland International 1987,1988,1990
	All Rights Reserved.
*/

#ifndef __CTYPE_H
#define __CTYPE_H

#if __STDC__
#define _Cdecl
#else
#define _Cdecl	cdecl
#endif

#ifndef __PAS__
#define _CType _Cdecl
#else
#define _CType pascal
#endif

#define _IS_SP	1			/* is space */
#define _IS_DIG	2			/* is digit indicator */
#define _IS_UPP	4			/* is upper case */
#define _IS_LOW	8			/* is lower case */
#define _IS_HEX	16			/* [0..9] or [A-F] or [a-f] */
#define _IS_CTL	32			/* Control */
#define _IS_PUN	64			/* punctuation */

extern	char _CType _ctype[];	 /* Character type array */

#ifdef __cplusplus
extern "C" {
#endif
int _Cdecl isalnum (int __c);
int _Cdecl isalpha (int __c);
int _Cdecl isascii (int __c);
int _Cdecl iscntrl (int __c);
int _Cdecl isdigit (int __c);
int _Cdecl isgraph (int __c);
int _Cdecl islower (int __c);
int _Cdecl isprint (int __c);
int _Cdecl ispunct (int __c);
int _Cdecl isspace (int __c);
int _Cdecl isupper (int __c);
int _Cdecl isxdigit(int __c);
#ifdef __cplusplus
}
#endif

#define isalnum(c)	(_ctype[(c) + 1] & (_IS_DIG | _IS_UPP | _IS_LOW))
#define isalpha(c)	(_ctype[(c) + 1] & (_IS_UPP | _IS_LOW))
#define isascii(c)	((unsigned)(c) < 128)
#define iscntrl(c)	(_ctype[(c) + 1] & _IS_CTL)
#define isdigit(c)	(_ctype[(c) + 1] & _IS_DIG)
#define isgraph(c)	((c) >= 0x21 && (c) <= 0x7e)
#define islower(c)	(_ctype[(c) + 1] & _IS_LOW)
#define isprint(c)	((c) >= 0x20 && (c) <= 0x7e)
#define ispunct(c)	(_ctype[(c) + 1] & _IS_PUN)
#define isspace(c)	(_ctype[(c) + 1] & _IS_SP)
#define isupper(c)	(_ctype[(c) + 1] & _IS_UPP)
#define isxdigit(c)	(_ctype[(c) + 1] & (_IS_DIG | _IS_HEX))

#define toascii(c)	((c) & 0x7f)

#if !__STDC__
#define _toupper(c)	((c) + 'A' - 'a')
#define _tolower(c)	((c) + 'a' - 'A')
#endif

#ifdef __cplusplus
extern "C" {
#endif
int	_CType tolower(int __ch);
int	_CType toupper(int __ch);
#ifdef __cplusplus
}
#endif

#endif