examenII42.cpp

#include <iostream>

class A {
  private:
		int a;
		
	public:
		static double sa;
		
		A(int _a) {
			a = _a;
		}
		
		static void contar() {
			sa++;
		}
		
		virtual int calcular() {
			std::cout<<"Calcular A" <<std::endl;
		}
};

class B : public A {
	private:
		int b;
	public:
		B(int _a, int _b) : A(_a) {
			b = _b;
		}
};

class C : public B {
	private:
		float c;
		
	public:
		static float sc;
		
		C(int _a, int _b, float _c) : B(_a, _b) {
			c = _c;
		}
		
		virtual int calcular() {
			std::cout<<"Calcular C" <<std::endl;
		}
};

void fporvalor(A param1) {
	param1.calcular();
}

void fporreferencia(A &param1) {
	param1.calcular();
}

void fporobjectsharing(A *param1) {
	param1->calcular();
}

int main() {
	C c1(1, 2, 3.0);
	
	fporvalor(c1);
	
	fporreferencia(c1);
	
	fporobjectsharing(&c1);
}