isSubnormal

import Swift

@frozen struct Double

A double-precision, floating-point value type.

@frozen struct Bool

A value type whose instances are either true or false.

init()

init(_ other: Double)

Creates a new instance initialized to the given value.

init(_ other: Float)

Creates a new instance that approximates the given value.

init?(_ text: Substring)

init?<S>(_ text: S) where S : StringProtocol

Creates a new instance from the given string.

init(_ v: Int)

init(_ other: Float16)

Creates a new instance that approximates the given value.

init<Source>(_ value: Source) where Source : BinaryInteger

init(bitPattern: UInt64)

Creates a new value with the given bit pattern.

init?(exactly other: Double)

Creates a new instance initialized to the given value, if it can be represented without rounding.

init?(exactly other: Float)

Creates a new instance initialized to the given value, if it can be represented without rounding.

init?(exactly other: Float16)

Creates a new instance initialized to the given value, if it can be represented without rounding.

init?<Source>(exactly value: Source) where Source : BinaryInteger

init(floatLiteral value: Double)

init(from decoder: any Decoder) throws

init(integerLiteral value: Int64)

init(nan payload: Double.RawSignificand, signaling: Bool)

Creates a NaN (“not a number”) value with the specified payload.

init(sign: FloatingPointSign, exponent: Int, significand: Double)

init(sign: FloatingPointSign, exponentBitPattern: UInt, significandBitPattern: UInt64)

init(signOf sign: Double, magnitudeOf mag: Double)

static var exponentBitCount: Int { get }

static var greatestFiniteMagnitude: Double { get }

static var infinity: Double { get }

static var leastNonzeroMagnitude: Double { get }

static var leastNormalMagnitude: Double { get }

static var nan: Double { get }

static var pi: Double { get }

static var signalingNaN: Double { get }

static var significandBitCount: Int { get }

static var ulpOfOne: Double { get }

The unit in the last place of 1.0.

var binade: Double { get }

var bitPattern: UInt64 { get }

The bit pattern of the value’s encoding.

var customMirror: Mirror { get }

A mirror that reflects the Double instance.

var debugDescription: String { get }

A textual representation of the value, suitable for debugging.

var description: String { get }

A textual representation of the value.

var exponent: Int { get }

var exponentBitPattern: UInt { get }

var isCanonical: Bool { get }

var isFinite: Bool { get }

var isInfinite: Bool { get }

var isNaN: Bool { get }

var isNormal: Bool { get }

var isSignalingNaN: Bool { get }

var isZero: Bool { get }

var magnitude: Double { get }

var nextUp: Double { get }

var sign: FloatingPointSign { get }

var significand: Double { get }

var significandBitPattern: UInt64 { get }

var significandWidth: Int { get }

var ulp: Double { get }

static func * (lhs: Double, rhs: Double) -> Double

static func *= (lhs: inout Double, rhs: Double)

static func + (lhs: Double, rhs: Double) -> Double

static func += (lhs: inout Double, rhs: Double)

static func - (x: Double) -> Double

static func - (lhs: Double, rhs: Double) -> Double

static func -= (lhs: inout Double, rhs: Double)

static func / (lhs: Double, rhs: Double) -> Double

static func /= (lhs: inout Double, rhs: Double)

mutating func addProduct(_ lhs: Double, _ rhs: Double)

func advanced(by amount: Double) -> Double

func distance(to other: Double) -> Double

func encode(to encoder: any Encoder) throws

Encodes this value into the given encoder.

mutating func formRemainder(dividingBy other: Double)

mutating func formSquareRoot()

mutating func formTruncatingRemainder(dividingBy other: Double)

func hash(into hasher: inout Hasher)

func isEqual(to other: Double) -> Bool

func isLess(than other: Double) -> Bool

func isLessThanOrEqualTo(_ other: Double) -> Bool

mutating func negate()

mutating func round(_ rule: FloatingPointRoundingRule)

func write<Target>(to target: inout Target) where Target : TextOutputStream

@frozen struct SIMD16Storage

Storage for a vector of 16 floating-point values.

@frozen struct SIMD2Storage

Storage for a vector of two floating-point values.

@frozen struct SIMD32Storage

Storage for a vector of 32 floating-point values.

@frozen struct SIMD4Storage

Storage for a vector of four floating-point values.

@frozen struct SIMD64Storage

Storage for a vector of 64 floating-point values.

@frozen struct SIMD8Storage

Storage for a vector of eight floating-point values.

typealias Exponent = Int

typealias Magnitude = Double

typealias RawSignificand = UInt64

typealias SIMDMaskScalar = Int64

var customPlaygroundQuickLook: _PlaygroundQuickLook { get }

A custom playground Quick Look for the Double instance.