C++17 Quick Syntax Reference: A Pocket Guide to the Language, APIs and Library

© Mikael Olsson 2018

Mikael OlssonC++17 Quick Syntax Referencehttps://doi.org/10.1007/978-1-4842-3600-0_18

18. Enum Types

Mikael Olsson¹ 

(1)

Hammarland, Finland

 

An enum is a user-defined type consisting of a fixed list of named constants. In the following example, the enumeration type is called Color and it contains three constants: Red, Green, and Blue.

enum Color { Red, Green, Blue };

The Color type can be used to create variables that may hold one of these constant values.

int main()

{

  Color c = Red;

}

Enum constants may be prefixed with the enum name for added clarity. However, these constants are always unscoped, so care must be taken to avoid naming conflicts.

Color c = Color::Red;

Enum Example

The switch statement provides a good example of ...