namespace std { namespace experimental { namespace ranges { inline namespace v1 {
template <class Container>
class back_insert_iterator {
public:
using container_type = Container;
using difference_type = ptrdiff_t;
constexpr back_insert_iterator();
explicit back_insert_iterator(Container& x);
back_insert_iterator&
operator=(const value_type_t<Container>& value);
back_insert_iterator&
operator=(value_type_t<Container>&& value);
back_insert_iterator& operator*();
back_insert_iterator& operator++();
back_insert_iterator operator++(int);
private:
Container* container; };
template <class Container>
back_insert_iterator<Container> back_inserter(Container& x);
}}}}