C++: Is it better to pass an enum as a value or as a const reference?

Question

There are sort of two related questions here:

A) How is enum implemented? For example, if I have the code:

enum myType
{ 
   TYPE_1,
   TYPE_2
};
         


        

Answer 1

pass built-in simple types (char, short, int, enum, float, pointers) by value

enums are implemented as integers, you can even explicitly specifiy values for them.