#ifndef ITERATOR_H
#define ITERATOR_H

#include "nosuchobject.h"
#include "list.h"

using namespace std;

template <typename> class List;

template <typename T>
class ListIterator
{

  friend class List<T>;

  public:
    ListIterator();
    void add( const T &object );
    bool hasNext() const;
    bool hasPrevious() const;
    T &next() throw ( NoSuchObject );
    T &previous() throw ( NoSuchObject );
    void set( const T & );
    void printInternal() const;

  private:
    Node<T> *current;
    bool atFront, atEnd;

}; // ListIterator class

#endif