| #ifndef __CTYPE |
| #define __CTYPE |
| |
| extern int isalnum(int); |
| extern int isalpha(int); |
| extern int iscntrl(int); |
| extern int isdigit(int); |
| extern int isgraph(int); |
| extern int islower(int); |
| extern int isprint(int); |
| extern int ispunct(int); |
| extern int isspace(int); |
| extern int isupper(int); |
| extern int isxdigit(int); |
| extern int tolower(int); |
| extern int toupper(int); |
| |
| #define __U 01 |
| #define __L 02 |
| #define __N 04 |
| #define __S 010 |
| #define __P 020 |
| #define __C 040 |
| #define _U 01 |
| #define _L 02 |
| #define _N 04 |
| #define _S 010 |
| #define _P 020 |
| #define _C 040 |
| #define _B 0100 |
| #define _X 0200 |
| |
| extern unsigned 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] & _X) |
| #define isalnum(c) ((__ctype + 1)[c] & (_U | _L | _N)) |
| #define isspace(c) ((__ctype + 1)[c] & _S) |
| #define ispunct(c) ((__ctype + 1)[c] & _P) |
| #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) |
| |
| #endif /* __CTYPE */ |
