[unix-history] / usr / include / ctype.h

#define	_U	01
#define	_L	02
#define	_N	04
#define	_S	010
#define _P	020
#define _C	040
#define _X	0100

extern	char	_ctype_[];

#define	isalpha(c)	((_ctype_+1)[c]&(_U|_L))
#define	isupper(c)	((_ctype_+1)[c]&_U)
#define	islower(c)	((_ctype_+1)[c]&_L)
#define	isdigit(c)	((_ctype_+1)[c]&_N)
#define	isxdigit(c)	((_ctype_+1)[c]&(_N|_X))
#define	isspace(c)	((_ctype_+1)[c]&_S)
#define ispunct(c)	((_ctype_+1)[c]&_P)
#define isalnum(c)	((_ctype_+1)[c]&(_U|_L|_N))
#define isprint(c)	((_ctype_+1)[c]&(_P|_U|_L|_N))
#define iscntrl(c)	((_ctype_+1)[c]&_C)
#define isascii(c)	((unsigned)(c)<=0177)
#define toupper(c)	((c)-'a'+'A')
#define tolower(c)	((c)-'A'+'a')
#define toascii(c)	((c)&0177)
Commit	Line	Data
fb001b44 BJ	1	#define _U 01
	2	#define _L 02
	3	#define _N 04
	4	#define _S 010
	5	#define _P 020
	6	#define _C 040
	7	#define _X 0100
	8
	9	extern char _ctype_[];
	10
	11	#define isalpha(c) ((_ctype_+1)[c]&(_U\|_L))
	12	#define isupper(c) ((_ctype_+1)[c]&_U)
	13	#define islower(c) ((_ctype_+1)[c]&_L)
	14	#define isdigit(c) ((_ctype_+1)[c]&_N)
	15	#define isxdigit(c) ((_ctype_+1)[c]&(_N\|_X))
	16	#define isspace(c) ((_ctype_+1)[c]&_S)
	17	#define ispunct(c) ((_ctype_+1)[c]&_P)
	18	#define isalnum(c) ((_ctype_+1)[c]&(_U\|_L\|_N))
	19	#define isprint(c) ((_ctype_+1)[c]&(_P\|_U\|_L\|_N))
	20	#define iscntrl(c) ((_ctype_+1)[c]&_C)
	21	#define isascii(c) ((unsigned)(c)<=0177)
	22	#define toupper(c) ((c)-'a'+'A')
	23	#define tolower(c) ((c)-'A'+'a')
	24	#define toascii(c) ((c)&0177)