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friendly functions in C++

Upset Unicorn answered on April 30, 2023 Popularity 1/10 Helpfulness 8/10

answer friendly functions in C++

friendly functions in C++

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#include <iostream>

using namespace std;

class Fraction {
	long long int x, y;
public:
	Fraction(long long int x = 0, long long int y = 1): x(x), y(y) {}
    
    void read() {
    	char junk;
        cin >> x >> junk >> y;
    }
    void show() {
    	cout << x << "/" << y << endl;
    }
    
    // We want to find sum of int and our Fraction
    // but we don't know the order, so we write
    // Fraction + int here
    
    Fraction operator+(int a) {
    	return Fraction(x + a * y, y);
    }
    
    // And int + Fraction outside and make the
    // function friendly
    
    friend Function(int a, Fraction one);
};

Function(int a, Fraction one) {
	return Fraction(a * one.y + one.x, one.y);
}

int main() {
	Fraction a;
    a.read();
    int b;
    cin >> b;
    Fraction ans1 = a + b;
    Fraction ans2 = b + a;
    ans1.show();
    ans2.show();
	return 0;
}

Popularity 1/10 Helpfulness 8/10 Language cpp

Source: Grepper

Tags: c++

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Contributed on Apr 30 2023

Upset Unicorn

0 Answers Avg Quality 2/10

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