9 Iterators library [iterators]

9.7.2.3 Class template front_insert_iterator [front.insert.iterator]

namespace std { namespace experimental { namespace ranges { inline namespace v1 {
  template <class Container>
  class front_insert_iterator {
  public:
    using container_type = Container;
    using difference_type = ptrdiff_t;

    constexpr front_insert_iterator();
    explicit front_insert_iterator(Container& x);
    front_insert_iterator&
      operator=(const value_type_t<Container>& value);
    front_insert_iterator&
      operator=(value_type_t<Container>&& value);

    front_insert_iterator& operator*();
    front_insert_iterator& operator++();
    front_insert_iterator operator++(int);

  private:
    Container* container; // exposition only
  };

  template <class Container>
    front_insert_iterator<Container> front_inserter(Container& x);
}}}}