ITEMS
unsigned long idx[ITEMS];
for (i = 0; i < ITEMS; i++) {
tagged = tag_tagged_items(&tree, start, end, ITEMS, XA_MARK_0, XA_MARK_1);
check_copied_tags(&tree, start, end, idx, ITEMS, 0, 1);
check_copied_tags(&tree, start, end, idx, ITEMS, 0, 2);