how to overload operator == outside template class using friend function?

Question

I\'m trying to write a template class which overloads operator==. I know how to get it inside the class:

    template 
            


        

Answer 1

You have to put friend classes within each other, as well as in themselves. The Real one is named syntactically the same without replacing expressions. So friend bool operator==(P,P); goes in both of the classes. So put friend before bool in the class T :-)