1 /* 2 * Copyright (c) 1988 Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 * 7 * @(#)general.h 1.4 (Berkeley) 06/01/90 8 */ 9 10 /* 11 * Some general definitions. 12 * 13 * @(#)general.h 3.1 (Berkeley) 8/11/87 14 */ 15 16 17 #define numberof(x) (sizeof x/sizeof x[0]) 18 #define highestof(x) (numberof(x)-1) 19 20 #if defined(unix) 21 #define ClearElement(x) bzero((char *)&x, sizeof x) 22 #define ClearArray(x) bzero((char *)x, sizeof x) 23 #else /* defined(unix) */ 24 #define ClearElement(x) memset((char *)&x, 0, sizeof x) 25 #define ClearArray(x) memset((char *)x, 0, sizeof x) 26 #endif /* defined(unix) */ 27 28 #if defined(unix) /* Define BSD equivalent mem* functions */ 29 #define memcpy(dest,src,n) bcopy(src,dest,n) 30 #define memmove(dest,src,n) bcopy(src,dest,n) 31 #define memset(s,c,n) if (c == 0) { \ 32 bzero(s,n); \ 33 } else { \ 34 register char *src = s; \ 35 register int count = n; \ 36 \ 37 while (count--) { \ 38 *src++ = c; \ 39 } \ 40 } 41 #define memcmp(s1,s2,n) bcmp(s1,s2,n) 42 #endif /* defined(unix) */ 43