//**********************
//**    ch17_3.cpp    **
//**********************


#include<iostream.h>

class Furniture{
public:
  Furniture(){}
  void SetWeight(int i){ weight =i; }
  int GetWeight(){ return weight; }
protected:
  int weight;
};

class Bed :virtual public Furniture{
public:
  Bed(){}
  void Sleep(){ cout <<"Sleeping...\n"; }
};

class Sofa :virtual public Furniture{
public:
  Sofa(){}
  void WatchTV(){ cout <<"Watching TV.\n"; }
};

class SleeperSofa :public Bed, public Sofa{
public:
  SleeperSofa() :Sofa(), Bed(){}
  void FoldOut(){ cout <<"Fold out the sofa.\n"; }
};

void main()
{
  SleeperSofa ss;
  ss.SetWeight(20);
  cout <<ss.GetWeight() <<endl;
}