C++ How to Program, 10/e

... Status (line 18). Line 12 declares a user-defined type called a scoped enumeration (C++11) which is introduced by the keywords enum class, followed by a type name (Status) and a set of identifiers representing integer constants. The values of these enumeration constants are of type int, start at 0 (unless specified otherwise) and increment by 1. In the preceding enumeration, the constant CONTINUE has the value 0, WON has the value 1 and LOST has the value 2. The identifiers in an enum class must be unique, but separate enumeration constants can have the same integer value. Variables of user-defined type Status can be assigned only one of the three values declared in the enumeration.

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Good Programming Practice 6.2

By convention, you should capitalize ...