The find() member function now takes an optional second argument (pos) to indicate the starting position for the search. The default value for pos is zero, meaning that the search begins from the first element in the array. The search will also begin from the first element in the array if pos is less than zero. The new rfind() member function is a variation of find() that searches backwards from the starting position. As with find(), its optional second argument (pos) indicates the starting position for the search.