projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 6941fcc4 EA |
1 | /* |
| 2 | ** USEFUL.H -- Some useful stuff. | |
| 916b3375 | 3 | ** |
| 62fff4f9 | 4 | ** @(#)useful.h 3.5 %G% |
| 6941fcc4 EA |
5 | */ |
| 6 | ||
| 1146de6b EA |
7 | # ifndef makedev |
| 8 | # include <sys/types.h> | |
| 9 | # endif | |
| 10 | ||
| 11 | /* support for bool type */ | |
| 12 | typedef char bool; | |
| 6941fcc4 EA |
13 | # define TRUE 1 |
| 14 | # define FALSE 0 | |
| 15 | ||
| 16 | # ifndef NULL | |
| 17 | # define NULL 0 | |
| 18 | # endif NULL | |
| 21d76258 | 19 | |
| 1146de6b | 20 | /* bit hacking */ |
| 21d76258 | 21 | # define bitset(bit, word) ((word) & (bit)) |
| 29871fef EA |
22 | |
| 23 | /* define the types of some common functions */ | |
| 24 | extern char *strcpy(); | |
| 25 | extern char *strcat(); | |
| 26 | extern char *malloc(); | |
| 27 | extern char *index(), *rindex(); | |
| 28 | extern int errno; | |
| 29 | extern char *sprintf(); | |
| 62fff4f9 | 30 | extern time_t time(); |
| 29871fef EA |
31 | extern char *ctime(); |
| 32 | # ifndef V6 | |
| 33 | extern char *getenv(); | |
| b14547d5 EA |
34 | # else V6 |
| 35 | typedef char *u_short; | |
| 36 | typedef long u_long; | |
| 37 | typedef char u_char; | |
| 38 | typedef int void; | |
| 39 | # endif V6 |