Modern C++ for Absolute Beginners: A Friendly Introduction to the C++ Programming Language and C++11 to C++23 Standards

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2023

S. DmitrovićModern C++ for Absolute Beginnershttps://doi.org/10.1007/978-1-4842-9274-7_29

29. Enumerations

Slobodan Dmitrović¹  

(1)

Belgrade, Serbia

 

Enumeration, or enum for short, is a type whose values are symbolic, user-defined, named constants called enumerators.

There are two kinds of enums: the unscoped enums and scoped enums. The unscoped enum type can be defined with

enum MyEnum

{

    myfirstvalue,

    mysecondvalue,

    mythirdvalue

};

To declare a variable of enumeration type MyEnum, we write

enum MyEnum

{

    myfirstvalue,

    mysecondvalue,

    mythirdvalue

};

int main()

{

    MyEnum myenum = myfirstvalue;

    myenum = mysecondvalue; // we can change the value of ...