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template <class Container>
class back_insert_iterator :
public iterator<output_iterator_tag,void,void,void,void>
{
protected:
Container* container;
public:
typedef Container container_type;
explicit back_insert_iterator (Container& x) : container(&x) {}
back_insert_iterator<Container>& operator= (const typename Container::value_type& value)
{ container->push_back(value); return *this; }
back_insert_iterator<Container>& operator= (typename Container::value_type&& value)
{ container->push_back(std::move(value)); return *this; }
back_insert_iterator<Container>& operator* ()
{ return *this; }
back_insert_iterator<Container>& operator++ ()
{ return *this; }
back_insert_iterator<Container> operator++ (int)
{ return *this; }
};
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