#include <iostream>
  
enum BREED { YORKIE, CAIRN, DANDIE, SHETLAND, DOBERMAN, LAB };
  
class Mammal
{
public:
    // constructors
    Mammal();
    Mammal(int age);
    ~Mammal();
  
    // accessors
    int getAge() const { return age; }
    void setAge(int newAge) { age = newAge; }
    int getWeight() const { return weight; }
    void setWeight(int newWeight) { weight = newWeight; }
  
    // other methods
    void speak() const { std::cout << "Mammal sound!\n"; }
    void sleep() const { std::cout << "Shhh. I'm sleeping.\n"; }
  
protected:
    int age;
    int weight;
};
  
class Dog : public Mammal
{
public:
    // constructors
    Dog();
    Dog(int age);
    Dog(int age, int weight);
    Dog(int age, BREED breed);
    Dog(int age, int weight, BREED breed);
    ~Dog();
  
    // accessors
    BREED getBreed() const { return breed; }
    void setBreed(BREED newBreed) { breed = newBreed; }
  
    // other methods
    void wagTail() { std::cout << "Tail wagging ...\n"; }
    void begForFood() { std::cout << "Begging for food ...\n"; }
  
private:
    BREED breed;
};
  
Mammal::Mammal():
age(1),
weight(5)
{
    std::cout << "Mammal constructor ...\n";
}
  
Mammal::Mammal(int age):
age(age),
weight(5)
{
    std::cout << "Mammal(int) constructor ...\n";
}
  
Mammal::~Mammal()
{
    std::cout << "Mammal destructor ...\n";
}
  
Dog::Dog():
Mammal(),
breed(YORKIE)
{
    std::cout << "Dog constructor ...\n";
}
  
Dog::Dog(int age):
Mammal(age),
breed(YORKIE)
{
    std::cout << "Dog(int) constructor ...\n";
}
  
Dog::Dog(int age, int newWeight):
Mammal(age),
breed(YORKIE)
{
    weight = newWeight;
    std::cout << "Dog(int, int) constructor ...\n";
}
  
Dog::Dog(int age, int newWeight, BREED breed):
Mammal(age),
breed(breed)
{
    weight = newWeight;
    std::cout << "Dog(int, int, BREED) constructor ...\n";
}
  
Dog::Dog(int age, BREED newBreed):
Mammal(age),
breed(newBreed)
{
    std::cout << "Dog(int, BREED) constructor ...\n";
}
  
Dog::~Dog()
{
    std::cout << "Dog destructor ...\n";
}

int main()
{
    Dog fido;
    Dog rover(5);
    Dog buster(6, 8);
    Dog yorkie (3, YORKIE);
    Dog dobbie (4, 20, DOBERMAN);
    fido.speak();
    rover.wagTail();
    std::cout << "Yorkie is " 
        << yorkie.getAge() << " years old\n";
    std::cout << "Dobbie weighs " 
        << dobbie.getWeight() << " pounds\n";
    return 0;
}