Enum (keyword)

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enum is used to define an enumerated type. Enumerated types are used when you want to assign identifiers to numerical values.

Example

type
  SomeColorEnumeration = enum(Red, Green, Blue);

In classic Pascal and Delphi, enum was not used:

type
  SomeColorEnumeration = (Red, Green, Blue);

While this still works in Oxygene, the use of the enum keyword gives more consistent code when also using flags.

Below the surface, an enumerated type is actually an integer. When using the above examples, the compiler will automatically assign numbers to the values. (starting with 0) This implies that you can easily cast from and to an integer.

It is also possible to override the default numerical values:

type
  SomeColorEnumeration = enum(Red = 10, Green = 20, Blue = 30);

See Also

• flags
• Language Features

Product: RemObjects Oxygene (formerly known as Chrome)
Current version: 3.0 Previous Versions: 'Joyride' (2.0), 'Floorshow' (1.5), 'Adrenochrome' (1.0)

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