projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 897ce52e KB |
1 | /* |
| 2 | * Copyright (c) 1988 Regents of the University of California. | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * Redistribution and use in source and binary forms are permitted | |
| ca67e7b4 C |
6 | * provided that this notice is preserved and that due credit is given |
| 7 | * to the University of California at Berkeley. The name of the University | |
| 8 | * may not be used to endorse or promote products derived from this | |
| 9 | * software without specific prior written permission. This software | |
| 10 | * is provided ``as is'' without express or implied warranty. | |
| 897ce52e | 11 | * |
| ca67e7b4 | 12 | * @(#)general.h 1.2 (Berkeley) 3/8/88 |
| 897ce52e KB |
13 | */ |
| 14 | ||
| 5f5fd947 GM |
15 | /* |
| 16 | * Some general definitions. | |
| 17 | * | |
| 18 | * @(#)general.h 3.1 (Berkeley) 8/11/87 | |
| 19 | */ | |
| 20 | ||
| 21 | ||
| 22 | #define numberof(x) (sizeof x/sizeof x[0]) | |
| 23 | #define highestof(x) (numberof(x)-1) | |
| 24 | ||
| 25 | #if defined(unix) | |
| 26 | #define ClearElement(x) bzero((char *)&x, sizeof x) | |
| 27 | #define ClearArray(x) bzero((char *)x, sizeof x) | |
| 28 | #else /* defined(unix) */ | |
| 29 | #define ClearElement(x) memset((char *)&x, 0, sizeof x) | |
| 30 | #define ClearArray(x) memset((char *)x, 0, sizeof x) | |
| 31 | #endif /* defined(unix) */ | |
| 32 | ||
| 33 | #if defined(unix) /* Define BSD equivalent mem* functions */ | |
| 34 | #define memcpy(dest,src,n) bcopy(src,dest,n) | |
| 35 | #define memmove(dest,src,n) bcopy(src,dest,n) | |
| 36 | #define memset(s,c,n) if (c == 0) { \ | |
| 37 | bzero(s,n); \ | |
| 38 | } else { \ | |
| 39 | register char *src = s; \ | |
| 40 | register int count = n; \ | |
| 41 | \ | |
| 42 | while (count--) { \ | |
| 43 | *src++ = c; \ | |
| 44 | } \ | |
| 45 | } | |
| 46 | #define memcmp(s1,s2,n) bcmp(s1,s2,n) | |
| 47 | #endif /* defined(unix) */ |