// linklist2.h			By: Aiman Hanna -  ©1993-2003 Aiman Hanna

#ifndef __LINKLIST2_H
#define __LINKLIST2_H

#include<iostream.h>

class IntList;	 		// Forward declaration.

class Node
{
    friend class IntList;
	friend ostream& operator<< ( ostream&, IntList );
  public:
  	Node();
  private:
  	int value;
	Node  *next;

};


class IntList
{
	friend ostream& operator<< ( ostream&, IntList );

  public:
    IntList();
	IntList( const IntList& );

	IntList& operator= ( const IntList& );

	void Insert( int );
	void InsertByBadImplementation( int );
	void Remove();

	void Head();
	void Tail();

	IntList& operator-- (int);	// postfix instance of ++ operator
	IntList& operator++ (int);	// as 'int' is stated as an argument

	IntList& operator-- ();		// prefix instance of -- operator
	IntList& operator++();		// prefix instance of ++ operator

	int Retrieve() const;
	void Update( int ) ;

	int Length();

	~IntList();

   private:
   	Node *first, *last, *current;
	int size;
};

#endif