// File: DoubleNode.h
//
// HNode with double data
//

#ifndef DOUBLENODE_H
#define DOUBLENODE_H

#include <iostream>
#include "HList.h"

using namespace std ;

class DoubleNode : public HNode {

public:
   DoubleNode(double data = 0.0) ;

   void print(ostream& os =cout) const ;
   DoubleNode *clone() const ;    // OK to return DoubleNode ptr 
   bool operator==(const HNode& rhs_ref) const ;

   double get() const ;           // not virtual!
   void set(double data) ;

protected:      // allows for future derivation
   double m_data ;
} ;


#endif