{

int numbers_[] = { 0, -1, 4, -3, 5, 8, -2 };

const int N = sizeof(numbers_)/sizeof(int);

typedef int* base_iterator;

base_iterator numbers(numbers_);

// Example using make_filter_iterator()

auto beg = make_filter_iterator<is_positive_number>(numbers, numbers+N);

auto end = make_filter_iterator<is_positive_number>(numbers+N, numbers+N);

copy(beg, end, ostream_iterator<int>(cout, " "));

cout << endl;

// Example using filter_iterator

typedef filter_iterator<is_positive_number, base_iterator>

FilterIter;

is_positive_number predicate;

FilterIter filter_iter_first(predicate, numbers, numbers+N);

FilterIter filter_iter_last (predicate, numbers+N, numbers+N);

copy(filter_iter_first, filter_iter_last, ostream_iterator<int>(cout, " "));

cout << endl;

// Another example using make_filter_iterator()

copy(make_filter_iterator(bind2nd(greater<int>(), -2), numbers, numbers+N) ,

make_filter_iterator(bind2nd(greater<int>(), -2), numbers+N, numbers+N) ,

ostream_iterator<int>(cout, " ")

);

cout << endl;

return boost::exit_success;