Question

I have this snippet of the code in my header:

class A {
private:
    int player;
public:
    A(int initPlayer = 0);
    A(const A&);
    A& operator=(const A&);
    ~A();
    void foo() const;
friend int operator==(const A& i, const A& member) const;
};

implementation of the operator==

int operator==(const A& i, const A& member) const{
    if(i.player == member.player){
        return  1;
    }
    return 0;

}

and I need casting for this part of my code:

i – is some int, which my function receives

A *pa1 = new A(a2);

assert(i == *pa1);

I receive an error non-member function, How can I fix it? thanks in advance

Answer 1

Your error is nothing to do with casting or user-defined conversions.

You can’t have a const qualification on a function that isn’t a member function so this:

int operator==(const A& i, const A& member) const;

should be this:

int operator==(const A& i, const A& member);