C++ return type overload hack

Question

I was bored and came up with such hack (pseudocode):

 1 struct proxy {
 2     operator int(); // int function
 3     operator double(); // double function
 4             


        

Answer 1

In your example, you allow casts to int and float. As long as these two casts perform the same basic logic, i.e. operator int() { return operator float(); } I see no problem. If they behave differently, this could definitely result in some surprises or ambiguities. This is because I would expect numeric results to have a coherent meaning.