ExpressibleByIntegerLiteral

    A type that can be initialized with an integer literal.

    protocol ExpressibleByIntegerLiteral
    Browse conforming types

    The standard library integer and floating-point types, such as Int and Double, conform to the ExpressibleByIntegerLiteral protocol. You can initialize a variable or constant of any of these types by assigning an integer literal.

    // Type inferred as 'Int'
    let cookieCount = 12
    
    // An array of 'Int'
    let chipsPerCookie = [21, 22, 25, 23, 24, 19]
    
    // A floating-point value initialized using an integer literal
    let redPercentage: Double = 1
    // redPercentage == 1.0

    Conforming to ExpressibleByIntegerLiteral

    To add ExpressibleByIntegerLiteral conformance to your custom type, implement the required initializer.

    Requirements

    Type members

    Citizens in Swift

    Subtypes

    Citizens in Swift

    where Self:_ExpressibleByBuiltinIntegerLiteral

    Type members

    Extension in RealModule

    Subtypes