#include <iostream.h>
#include <stdlib.h>

class mammal
{

   public:
      mammal() { cout << "Mammal constructor \n";
                 setage(); };
      mammal(int age) { cout << "Mammal constructor \n";
                    setage(age); }; 
      virtual ~mammal() { cout << "Mammal destructor \n"; };
      virtual void speak() const { cout << "Mammal speak! \n"; };
      void move() { cout << "Mammal Moves! \n"; };
      void setage() { itsage = 1; };
      void setage(int age) {itsage = age; };
      void getage() { cout << itsage << endl; };
   
   protected:
      int itsage;

};

class dog : public mammal
{

   public:
      dog() { cout << "Dog constructor \n"; }; 
      virtual ~dog() { cout << "Dog destructor \n"; ); 
      void speak() { cout << "Woof! \n"; };
      void move() { cout << "dog moves! \n"; };

};

int main()
{
   mammal* fido = new dog;
   fido -> getage();
   fido -> speak();
   fido -> move();
   system("PAUSE");
   return 0;

}