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-
- /* @(#)ctype.h 1.1 86/09/27 SMI; from UCB 4.1 83/05/03 */
- /* branched from SMI 1.2 83/08/07 */
-
- #define _U 01
- #define _L 02
- #define _N 04
- #define _S 010
- #define _P 020
- #define _C 040
- #define _X 0100
- #define _B 0200
-
- 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|_B))
- #define isgraph(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)
-