#include <iostream>

typedef long long integer;

class Fraction
{
  private:
	integer numerator = 0; // esto es tambien es inicializacion a partir de C++11
	integer denominator = 1;

  public:
	Fraction(integer numerator = 0, integer denominator = 1)
		: numerator{numerator} // esto SI es inicializacion en C++
		, denominator{denominator ? denominator : 1}
	{
		//numerator = 0; // Esto NO es inicializacion
		//denominator = 1; // es asignacion
	}

	inline integer getNumerator() const
	{
		return this->numerator;
	}

	inline void setNumerator(integer numerator)
	{
		Fraction::numerator = numerator;
	}

	inline integer getDenominator() const
	{
		return this->denominator;
	}

	inline void setDenominator(integer denominator)
	{
		if ( denominator )
			this->denominator = denominator;
	}

	void print() const
	{
		std::cout << this->getNumerator() << '/' << this->denominator;
	}
};

// Funcion libre
int main()
{
	Fraction fr1;
	fr1.setDenominator(-3);
	fr1.setDenominator(0);
	std::cout << "fr1 = ";
	fr1.print();
	std::cout << std::endl;

	Fraction fr2(2, 9);
	std::cout << "fr2 = ";
	fr2.print();
	std::cout << std::endl;

	Fraction fr3(5);
	std::cout << "fr3 = ";
	fr3.print();
	std::cout << std::endl;

	Fraction* fr0 = new Fraction();
	delete fr0;
}