Operator Overloading

Making Your Classes Work with Operators

class Vector2D {
public:
    double x, y;
    Vector2D(double x=0, double y=0) : x(x), y(y) {}

    Vector2D operator+(const Vector2D& o) const {
        return {x+o.x, y+o.y};
    }

    bool operator==(const Vector2D& o) const {
        return x==o.x && y==o.y;
    }
};

ostream& operator<<(ostream& os, const Vector2D& v) {
    return os << "(" << v.x << "," << v.y << ")";
}

Vector2D a(1,2), b(3,4);
cout << (a + b);     // (4,6)

Your Task

Implement a Fraction class with:

• operator+ — add two fractions: a/b + c/d = (a*d + c*b)/(b*d)
• operator== — cross-multiply: a/b == c/d ↔ a*d == c*b
• double toDouble()