template <class Predicate, class Iterator>
filter_iterator<Predicate,Iterator>
make_filter_iterator(Predicate f, Iterator x, Iterator end = Iterator());
Returns:filter_iterator<Predicate,Iterator>(f, x, end)
template <class Predicate, class Iterator>
filter_iterator<Predicate,Iterator>
make_filter_iterator(Iterator x, Iterator end = Iterator());
Returns:filter_iterator<Predicate,Iterator>(x, end)