1 /* Copyright (c) 1979 Regents of the University of California */ 2 3 static char sccsid[] = "@(#)blkcpy.c 1.3 11/12/82"; 4 5 blkcpy(from, to, siz) 6 register char *from; 7 register char *to; 8 long siz; 9 { 10 register int size = siz; 11 12 if (to < from) 13 while(size-- > 0) 14 *to++ = *from++; 15 else { 16 to += size; 17 from += size; 18 while(size-- > 0) 19 *--to = *--from; 20 } 21 } 22