Question

I need to overload the assignment/decrement operator (-=) so that the code

object -= int

decrements object.life class member by the value on the rhs. Here is my code:

const Object& Object::operator -= (const Object& obj)
{ 
    if (life == obj.life)`
    {   
        this->life -= obj.life;
        return *this;
    }
} 

How do I implement this in my main?

int main()
{ 
    Object o1;
    o1 -= 5; //DOESN'T WORK
}

Any suggestions?
Thanks

Answer 1

You’re overloading the case when you subtract an object from an object, but the example you show is subtracting an integer. I you want to overload the operator that takes an integer:

const Object& Object::operator-= (int x);