ctype.h

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/***	ctype.h
/******************************************************************;
;*                                                                *;
;*          INTEL CORPORATION PROPRIETARY INFORMATION.            *;
;*   THIS LISTING IS SUPPLIED UNDER THE TERMS OF A LICENSE        *;
;*   AGREEMENT OR NON-DISCLOSURE AGREEMENT WITH INTEL CORPORATION *;
;*   AND MAY NOT BE COPIED NOR DISCLOSED EXCEPT IN ACCORDANCE     *;
;*   WITH THE TERMS OF THAT AGREEMENT.                            *;
;*                                                                *;
;******************************************************************/

#define L	0x01
#define U	0x02
#define D	0x04
#define S	0x08
#define P	0x10
#define C	0x20
#define X	0x40
#define B	0x80

extern const char	_ctype_[];

#define	isalnum(c)	((_ctype_)[c] & (U|L|D))
#define	isalpha(c)	((_ctype_)[c] & (U|L))
#define	isascii(c)	((unsigned)(c)<=0177)
#define	iscntrl(c)	((_ctype_)[c] & C)
#define	isdigit(c)	((_ctype_)[c] & D)
#define	isgraph(c)	((_ctype_)[c] & (P|U|L|D))
#define	islower(c)	((_ctype_)[c] & L)
#define	isprint(c)	((_ctype_)[c] & (P|U|L|D|B))
#define	ispunct(c)	((_ctype_)[c] & P)
#define	isspace(c)	((_ctype_)[c] & S)
#define	isupper(c)	((_ctype_)[c] & U)
#define	isxdigit(c)	((_ctype_)[c] & X)
#define	_toupper(c)	((c) & 0x5f)
#define	_tolower(c)	((c) | 0x20)