# include <iostream>
# include <iomanip>
# include <vector>
# include <iterator>

using namespace std;

template <class insert_iterator>
void f(insert_iterator iter)
{
  typename insert_iterator::container_type::value_type val;
  cout << "Input values" << endl;
  while((cin >> val)
  {
    *iter = val;
    iter++;
  }
}

int main()
{
  vector<int> vals;
  f(back_inserter(vals));
  copy(vals.begin(), vals.end(), ostream_iterator<int>(cout,", "));
}

# include <iterator.h>

template <class _Container>
class my_insert_iterator :
        public iterator<output_iterator_tag, void, void, void, void>
{
public:
  typedef _Container container_type;
  explicit my_insert_iterator(container_type& c) : container(&c) {}
  my_insert_iterator& operator=(typename container_type::reference_type x)
  {
    container->add(x);
    return *this;
  }
  my_insert_iterator& operator++()
  {
    return *this;
  }
  my_insert_iterator& operator++(int)
  {
    return *this;  my_insert_iterator& operator*()
  {
    return *this;
  }
private:
  _Container* container;
};

template <class _Container>
inline my_insert_iterator<_Container> my_inserter(_Container& c)
{
  return my_insert_iterator<_Container>(c);
}