xref: /csrg-svn/usr.bin/pascal/libpc/blkcpy.c (revision 40865)
1*40865Sbostic /*-
2*40865Sbostic  * Copyright (c) 1979 The Regents of the University of California.
3*40865Sbostic  * All rights reserved.
4*40865Sbostic  *
5*40865Sbostic  * %sccs.include.redist.c%
6*40865Sbostic  */
72985Smckusick 
8*40865Sbostic #ifndef lint
9*40865Sbostic static char sccsid[] = "@(#)blkcpy.c	1.4 (Berkeley) 04/09/90";
10*40865Sbostic #endif /* not lint */
112985Smckusick 
129134Smckusick blkcpy(from, to, siz)
132985Smckusick 	register char	*from;
142985Smckusick 	register char	*to;
159134Smckusick 	long		siz;
162985Smckusick {
172985Smckusick 	register int	size = siz;
182985Smckusick 
194445Smckusic 	if (to < from)
202985Smckusick 		while(size-- > 0)
212985Smckusick 			*to++ = *from++;
222985Smckusick 	else {
232985Smckusick 		to += size;
242985Smckusick 		from += size;
252985Smckusick 		while(size-- > 0)
262985Smckusick 			*--to = *--from;
272985Smckusick 	}
282985Smckusick }
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