Question

How to call multiple virtual functions using array of pointers in C++

Answer 1

#include <iostream>

using std::cout;
using std::endl;

class Mammal {
public:
	virtual ~Mammal() { }
	virtual void Print() const { cout << "class Mammal" << endl; }
};

class Dog : public Mammal {
public:
	void Print()const { cout << "class Dog" << endl; }
};

class Cat : public Mammal {
public:
	void Print()const { cout << "class Cat" << endl; }
};

class Dolphin : public Mammal {
public:
	void Print()const { cout << "class Dolphin" << endl; }
};


int main()
{
	Mammal *arr[4], *p;

	p = new Dog;
	arr[0] = p;

	p = new Cat;
	arr[1] = p;

	p = new Dolphin;
	arr[2] = p;

	p = new Mammal;
	arr[3] = p;

	for (int i = 0; i < 4; i++)
		arr[i]->Print();

	return 0;
}

/*
run:

class Dog
class Cat
class Dolphin
class Mammal

*/

 

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