Discussion post demonstration of dynamic binding and polymorphism

animals.cpp

/*
* Discussion post code sample
* Benjamin Lovy
*/

#include <iostream>

class Animal
{
public:
    virtual void makeNoise();
};

void Animal::makeNoise()
{
    std::cout << "*muffled scratching sounds*" << std::endl;
}

class Cat : public Animal
{
public:
    virtual void makeNoise();
};

void Cat::makeNoise()
{
    std::cout << "Meow!" << std::endl;
}

class Dog : public Animal
{
public:
    virtual void makeNoise();
};

void Dog::makeNoise()
{
    std::cout << "Woof!" << std::endl;
}

int main()
{
    // Init generic Animal
    Animal *generic = new Animal();
    // Init Cat
    Animal *cat = new Cat();
    // Init Dog
    Animal *dog = new Dog();

    // Make some noise
    std::cout << "Animal One: ";
    generic->makeNoise();
    std::cout << "Animal Two: ";
    cat->makeNoise();
    std::cout << "Animal Three: ";
    dog->makeNoise();
    
    delete generic;
    delete cat;
    delete dog;

    // Exit success
    return 0;
}