Function new_tail_cell

src/backend/nodes/list.c:319–326

* Make room for a new tail cell in the given (non-NIL) list. * * The data in the new tail cell is undefined; the caller should be * sure to fill it in */

 * sure to fill it in
 */
static void
new_tail_cell(List *list)
{
	/* Enlarge array if necessary */
	if (list->length >= list->max_length)
		enlarge_list(list, list->length + 1);
	list->length++;
}

/*
 * Append a pointer to the list. A pointer to the modified list is