what is the size of an enum type data in C++?

Question

This is a C++ interview test question not homework.

#include 
using namespace std;
enum months_t { january, february, march, april, may, jun         


        

Answer 1

I like the explanation From EdX (Microsoft: DEV210x Introduction to C++) for a similar problem:

"The enum represents the literal values of days as integers. Referring to the numeric types table, you see that an int takes 4 bytes of memory. 7 days x 4 bytes each would require 28 bytes of memory if the entire enum were stored but the compiler only uses a single element of the enum, therefore the size in memory is actually 4 bytes."