Explain how the operator overload function works? What new objects are being created at this moment? How does the this pointer work?

    1 answer 1

    An operator is exactly the same function as any other, only with a predetermined priority and the number of arguments. So that

     class X { X& operator + (int y);

    essentially no different than

     class X { X& add(int y);

    Just what you can write

     x.add(5);

    Can i

     x + 5;

    or

     x.operator+(5);

    Objects are created exactly the ones you specify to create. And this , as always, makes sense only in a member operator and points to an object of the class for which the statement is called.

    • o3 = o1 + o2; will this indicate o1? - Artyom Arshakyan
    • 2
      If the + operator is a member of a class, then this entry will be interpreted as o3=o1.operator+(o2) and, as you wrote, this will point to o1 . - Harry