ITREE_PRE_ORDER  1280 src/itree.c        case ITREE_PRE_ORDER:
ITREE_PRE_ORDER  1360 src/itree.c            case ITREE_PRE_ORDER:
ITREE_PRE_ORDER   862 test/manual/noverlay/itree-tests.c     itree_iterator_start (&it, &tree, 0, 100, ITREE_PRE_ORDER);