GET_NEXT_LTUPLE
ltp = GET_NEXT_LTUPLE(ltp);
} while ((tp = GET_NEXT_LTUPLE(tp)) != NULL);
} while ((tp = GET_NEXT_LTUPLE(tp)) != NULL);
while ((tp = GET_NEXT_LTUPLE(tp)) != NULL) {
while (((ltp = GET_NEXT_LTUPLE(ltp)) != NULL) &&