#ifndef _RATIONAL_H
#define _RATIONAL_H
#pragma once

#include <iostream>

class Rational
{
// declare input and output operators functions as friends
// to the class so they can directly access the private data
friend std::istream& operator>>(std::istream& is, Rational &r);
friend std::ostream& operator<<(std::ostream& os, const Rational &r);

public:
	// constructor
	Rational(int n = 0, int d = 1);

	// sets to n / d
	bool set(int n, int d);

	// accessor functions
	int num() const;
	int den() const;

	// returns decimal equivalent
	double decimal() const;

	//overload +
	Rational operator+(const Rational &r2) const;


private:
	int num_, den_; // numerator and denominator
};

// prototype for operator< standalone function
bool operator<(const Rational& r1, const Rational& r2);
#endif