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general.h
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1993-10-07
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53 lines
/*
* Copyright (c) 1988 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* @(#)general.h 5.1 (Berkeley) 9/14/90
*/
/*
* Some general definitions.
*/
#define numberof(x) (sizeof x/sizeof x[0])
#define highestof(x) (numberof(x)-1)
#if defined(unix)
#define ClearElement(x) bzero((char *)&x, sizeof x)
#define ClearArray(x) bzero((char *)x, sizeof x)
#else /* defined(unix) */
#define ClearElement(x) memset((char *)&x, 0, sizeof x)
#define ClearArray(x) memset((char *)x, 0, sizeof x)
#endif /* defined(unix) */
#if defined(unix) /* Define BSD equivalent mem* functions */
#define memcpy(dest,src,n) bcopy(src,dest,n)
#define memmove(dest,src,n) bcopy(src,dest,n)
#define memset(s,c,n) if (c == 0) { \
bzero(s,n); \
} else { \
register char *src = s; \
register int count = n; \
\
while (count--) { \
*src++ = c; \
} \
}
#define memcmp(s1,s2,n) bcmp(s1,s2,n)
#endif /* defined(unix) */