static void diff_resolve_rename_copy(void)
{
	int i;
	struct diff_filepair *p;
	struct diff_queue_struct *q = &diff_queued_diff;

	diff_debug_queue("resolve-rename-copy", q);

	for (i = 0; i < q->nr; i++) {
		p = q->queue[i];
		p->status = 0; /* undecided */
		if (DIFF_PAIR_UNMERGED(p))
			p->status = DIFF_STATUS_UNMERGED;
		else if (!DIFF_FILE_VALID(p->one))
			p->status = DIFF_STATUS_ADDED;
		else if (!DIFF_FILE_VALID(p->two))
			p->status = DIFF_STATUS_DELETED;
		else if (DIFF_PAIR_TYPE_CHANGED(p))
			p->status = DIFF_STATUS_TYPE_CHANGED;

		/* from this point on, we are dealing with a pair
		 * whose both sides are valid and of the same type, i.e.
		 * either in-place edit or rename/copy edit.
		 */
		else if (DIFF_PAIR_RENAME(p)) {
			/*
			 * A rename might have re-connected a broken
			 * pair up, causing the pathnames to be the
			 * same again. If so, that's not a rename at
			 * all, just a modification..
			 *
			 * Otherwise, see if this source was used for
			 * multiple renames, in which case we decrement
			 * the count, and call it a copy.
			 */
			if (!strcmp(p->one->path, p->two->path))
				p->status = DIFF_STATUS_MODIFIED;
			else if (--p->one->rename_used > 0)
				p->status = DIFF_STATUS_COPIED;
			else
				p->status = DIFF_STATUS_RENAMED;
		}
		else if (hashcmp(p->one->sha1, p->two->sha1) ||
			 p->one->mode != p->two->mode ||
			 is_null_sha1(p->one->sha1))
			p->status = DIFF_STATUS_MODIFIED;
		else {
			/* This is a "no-change" entry and should not
			 * happen anymore, but prepare for broken callers.
			 */
			error("feeding unmodified %s to diffcore",
			      p->one->path);
			p->status = DIFF_STATUS_UNKNOWN;
		}
	}
	diff_debug_queue("resolve-rename-copy done", q);
}
Unknown