Search Last Subrange
ForwardIterator1
find_end (ForwardIterator1 beg, ForwardIterator1 end,
ForwardIterator2 searchBeg, ForwardIterator2 searchEnd)
ForwardIterator1
find_end (ForwardIterator1 beg, ForwardIterator1 end,
ForwardIterator2 searchBeg, ForwardIterator2 searchEnd,
BinaryPredicate op)