ack/lang/cem/libcc/gen/bcopy.c
1987-03-31 10:45:53 +00:00

14 lines
249 B
C

/* $Header$ */
bcopy(old, new, n)
register char *old, *new;
register int n;
{
/* Copy a block of data. */
if (old <= new && old + (n-1) >= new) {
old += n; new += n;
while (n-- > 0) *--new = *--old;
}
else while (n-- > 0) *new++ = *old++;
}