C++ Enum vs Struct: What's the Difference?

What is the difference between an enum and a struct in C++?

In C++, an enum is a user-defined type consisting of a set of named integral constants, while a struct is a user-defined data type that groups variables of different types.

Can you give me an example of when to use an enum?

Sure! Use an enum when you have a variable that can take one of a limited set of values, like days of the week.

And when should I use a struct instead?

Use a struct when you need to group related data together, like a 'Person' struct that contains a name, age, and address.

Are there any performance differences between using enums and structs?

Generally, enums are more memory-efficient for representing a small set of related constants, while structs can hold more complex data.