How C++ uses enumerations to represent a set of related naming constants

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Use enumerations to represent a set of related named constants

Reason (reason)

An enumeration shows the enumerators to be related and can be a named type.

An enumerated type indicates that there is a correlation between enumerated values and can become a named type.

Example (sample)

Enum class Web_color {red = 0xFF0000, green = 0x00FF00, blue = 0x0000FF}; Note (note)

Switching on an enumeration is common and the compiler can warn against unusual patterns of case labels. For example:

Enabling enumerated types is a general operation, and the compiler can warn against unusual usage. For example:

Enum class Product_info {red = 0, purple = 1, blue = 2}

Void print (Product_info inf)

{

Switch (inf) {

Case Product_info::red: cout