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c++ friend function operator overloading

SubZero answered on March 7, 2023 Popularity 8/10 Helpfulness 2/10

answer c++ friend function operator overloading

c++ friend function operator overloading

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class Vector {
public:
  Vector(int x, int y) : x_(x), y_(y) {}

  int x() const { return x_; }
  int y() const { return y_; }

  friend Vector operator+(const Vector& v1, const Vector& v2);

private:
  int x_, y_;
};

Vector operator+(const Vector& v1, const Vector& v2) {
  return Vector(v1.x() + v2.x(), v1.y() + v2.y());
}

int main() {
  Vector a(1, 2), b(3, 4);
  Vector c = a + b;
  return 0;
}

In the main function, two Vector objects are created (a and b), and then added together using the + operator. The result is assigned to a third Vector object c.

By using friend functions to overload operators in C++, you can provide convenient and natural syntax for working with user-defined types in C++, and enable expressions like a + b to be evaluated just like built-in types.

Popularity 8/10 Helpfulness 2/10 Language cpp

Source: Grepper

Tags: c++ friend-function operator-overloading

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Contributed on Mar 07 2023

SubZero

0 Answers Avg Quality 2/10

c++ friend function operator overloading

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