#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 | |
#endif /* __CTYPE */ |