1 /*- 2 * Copyright (c) 1988, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 * 7 * @(#)general.h 8.1 (Berkeley) 06/06/93 8 */ 9 10 /* 11 * Some general definitions. 12 */ 13 14 #define numberof(x) (sizeof x/sizeof x[0]) 15 #define highestof(x) (numberof(x)-1) 16 17 #if defined(unix) 18 #define ClearElement(x) bzero((char *)&x, sizeof x) 19 #define ClearArray(x) bzero((char *)x, sizeof x) 20 #else /* defined(unix) */ 21 #define ClearElement(x) memset((char *)&x, 0, sizeof x) 22 #define ClearArray(x) memset((char *)x, 0, sizeof x) 23 #endif /* defined(unix) */ 24 25 #if defined(unix) /* Define BSD equivalent mem* functions */ 26 #define memcpy(dest,src,n) bcopy(src,dest,n) 27 #define memmove(dest,src,n) bcopy(src,dest,n) 28 #define memset(s,c,n) if (c == 0) { \ 29 bzero(s,n); \ 30 } else { \ 31 register char *src = s; \ 32 register int count = n; \ 33 \ 34 while (count--) { \ 35 *src++ = c; \ 36 } \ 37 } 38 #define memcmp(s1,s2,n) bcmp(s1,s2,n) 39 #endif /* defined(unix) */ 40