init(_:)
Creates a new instance initialized to the given value.
Declaration
init(_ other: Double)Parameters
- other:
The value to use for the new instance.
Discussion
The value of other is represented exactly by the new instance. A NaN passed as other results in another NaN, with a signaling NaN value converted to quiet NaN.
let x: Double = 21.25
let y = Double(x)
// y == 21.25
let z = Double(Double.nan)
// z.isNaN == true