Generic Initializer

init(_:)

Creates an integer from the given floating-point value, rounding toward zero. Any fractional part of the value passed as source is removed.

Declaration

init<T>(_ source: T) where T : BinaryFloatingPoint

Parameters

source: A floating-point value to convert to an integer. source must be representable in this type after rounding toward zero.

Discussion

let x = Int(21.5)
// x == 21
let y = Int(-21.5)
// y == -21

If source is outside the bounds of this type after rounding toward zero, a runtime error may occur.

let z = UInt(-21.5)
// Error: ...outside the representable range

See Also

Converting Floating-Point Values

init?<T>(exactly: T)

Creates an integer from the given floating-point value, if it can be represented exactly.

Creates an integer from the given floating-point value, rounding toward zero.

Creates an integer from the given floating-point value, rounding toward zero.

init(CGFloat)

Creates an integer from the given floating-point value, rounding toward zero.

init(Float80)

Creates an integer from the given floating-point value, rounding toward zero.

init?(exactly: Double)

Creates an integer from the given floating-point value, if it can be represented exactly.

init?(exactly: Float)

Creates an integer from the given floating-point value, if it can be represented exactly.

init?(exactly: Float80)

Creates an integer from the given floating-point value, if it can be represented exactly.