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procedure Dec(var X [ ; N: longint ] );
Decrements an ordinal value by N.
If N is omitted Dec subtracts one from the variable X.
type TExperience=(Beginner, Intermediate, Advanced);
var aProg : TExperience;
aProg := Intermediate;
aProg := Dec(aProg); // or Dec(aProg,1)
//aProg = Beginner
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Ordinal and Enumerated Data Types
Learn about Delphi's support for ordinal types. Extend Delphi's built-in types by constructing your own types.
Inc,
Succ,
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