148760Sbostic /*-
2*62364Sbostic  * Copyright (c) 1988, 1993
3*62364Sbostic  *	The Regents of the University of California.  All rights reserved.
431893Sminshall  *
548760Sbostic  * %sccs.include.redist.c%
633815Sbostic  *
7*62364Sbostic  *	@(#)general.h	8.1 (Berkeley) 06/06/93
830674Sminshall  */
930674Sminshall 
1033815Sbostic /*
1133815Sbostic  * Some general definitions.
1233815Sbostic  */
1330674Sminshall 
1430674Sminshall #define	numberof(x)	(sizeof x/sizeof x[0])
1530674Sminshall #define	highestof(x)	(numberof(x)-1)
1630723Sminshall 
1731092Sminshall #if	defined(unix)
1831092Sminshall #define	ClearElement(x)		bzero((char *)&x, sizeof x)
1930723Sminshall #define	ClearArray(x)		bzero((char *)x, sizeof x)
2031092Sminshall #else	/* defined(unix) */
2131157Sminshall #define	ClearElement(x)		memset((char *)&x, 0, sizeof x)
2231092Sminshall #define	ClearArray(x)		memset((char *)x, 0, sizeof x)
2331092Sminshall #endif	/* defined(unix) */
2431092Sminshall 
2531092Sminshall #if	defined(unix)		/* Define BSD equivalent mem* functions */
2631092Sminshall #define	memcpy(dest,src,n)	bcopy(src,dest,n)
2731092Sminshall #define	memmove(dest,src,n)	bcopy(src,dest,n)
2831092Sminshall #define	memset(s,c,n)		if (c == 0) { \
2931092Sminshall 				    bzero(s,n); \
3031092Sminshall 				} else { \
3131174Sminshall 				    register char *src = s; \
3231174Sminshall 				    register int count = n; \
3331174Sminshall 					\
3431174Sminshall 				    while (count--) { \
3531174Sminshall 					*src++ = c; \
3631174Sminshall 				    } \
3731092Sminshall 				}
3831248Sminshall #define	memcmp(s1,s2,n)		bcmp(s1,s2,n)
3931092Sminshall #endif	/* defined(unix) */
40