Learning Swift™ Programming

Raw Values

Raw values are different from associated values. You cannot have two of the same raw values in an enum. Raw values also all use the same type. You can use strings, ints, or any floating-point types. When you use ints, the value automatically increments for you. For example, say that you use ints as the raw value type. Since the raw value will automatically increment, you can use a shorthand way of declaring enum members on one line:

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enum Suit:Int {    case Clubs = 1, Hearts, Diamonds, Spades}var chosenSuit = Suit.Diamonds

Here you declare the raw value type by adding a colon (:) next to the enum name and writing the type. This is similar to declaring a type for a variable or constant. This example uses ...