An extended-precision, floating-point value type.
SDK
- Xcode 6.1+
Framework
- Swift Standard Library
Declaration
@frozen struct Float80
Structure
Float80
Topics
Type Aliases
typealias Float80A type that can represent any written exponent.
typealias Float80A type that represents a floating-point literal.
typealias Float80A type that represents an integer literal.
typealias Float80A type that represents the encoded exponent of a value.
typealias Float80A type that represents the distance between two values.
typealias Float80A type that can represent the absolute value of any possible value of this type.
typealias Float80A type that represents the encoded significand of a value.
Initializers
init()Creates a value initialized to zero.
init(Float80)Creates a new instance initialized to the given value.
init(Double)Creates a new instance that approximates the given value.
init(Int)Creates a new value, rounded to the closest possible representation.
init(Float)Creates a new instance that approximates the given value.
init?<S>(S)Creates a new instance from the given string.
init<Source>(Source)Creates a new value, rounded to the closest possible representation.
init<Source>(Source)Creates a new instance from the given value, rounded to the closest possible representation.
init<Source>(Source)Creates a new value, rounded to the closest possible representation.
init?(exactly: Float)Creates a new instance initialized to the given value, if it can be represented without rounding.
init?(exactly: Float80)Creates a new instance initialized to the given value, if it can be represented without rounding.
init?(exactly: Double)Creates a new instance initialized to the given value, if it can be represented without rounding.
init?<Source>(exactly: Source)Creates a new instance from the given value, if it can be represented exactly.
init?<Source>(exactly: Source)Creates a new value, if the given integer can be represented exactly.
init(floatCreates a new value from the given floating-point literal.
init(integerCreates a new value from the given integer literal.
init(integerCreates an instance initialized to the specified integer value.
init(nan: Float80Creates a NaN (“not a number”) value with the specified payload.
init(sign: FloatingCreates a new value from the given sign, exponent, and significand.
init(sign: FloatingCreates a new instance from the specified sign and bit patterns.
init(signCreates a new floating-point value using the sign of one value and the magnitude of another.
Instance Properties
var binade: Float80The floating-point value with the same sign and exponent as this value, but with a significand of 1.0.
var customA mirror that reflects the Float80 instance.
var debugA textual representation of the value, suitable for debugging.
var description: StringA textual representation of the value.
var exponent: IntThe exponent of the floating-point value.
var exponentThe raw encoding of the value’s exponent field.
var floatingThe classification of this value.
var hashThe hash value.
var isA Boolean value indicating whether the instance’s representation is in the canonical form.
var isA Boolean value indicating whether this instance is finite.
var isA Boolean value indicating whether the instance is infinite.
var isA Boolean value indicating whether the instance is NaN (“not a number”).
var isA Boolean value indicating whether this instance is normal.
var isA Boolean value indicating whether the instance is a signaling NaN.
var isA Boolean value indicating whether the instance is subnormal.
var isA Boolean value indicating whether the instance is equal to zero.
var magnitude: Float80The magnitude of this value.
var nextThe greatest representable value that compares less than this value.
var nextThe least representable value that compares greater than this value.
var sign: FloatingThe sign of the floating-point value.
var significand: Float80The significand of the floating-point value.
var significandThe raw encoding of the value’s significand field.
var significandThe number of bits required to represent the value’s significand.
var ulp: Float80The unit in the last place of this value.
Type Properties
static var exponentThe number of bits used to represent the type’s exponent.
static var greatestThe greatest finite number representable by this type.
static var infinity: Float80Positive infinity.
static var leastThe least positive number.
static var leastThe least positive normal number.
static var nan: Float80A quiet NaN (“not a number”).
static var pi: Float80The mathematical constant pi.
static var radix: IntThe radix, or base of exponentiation, for this floating-point type.
static var signalingA signaling NaN (“not a number”).
static var significandThe available number of fractional significand bits.
static var ulpThe unit in the last place of 1.0.
static var zero: Float80The zero value.
Instance Methods
func addAdds the product of the two given values to this value in place, computed without intermediate rounding.
func addingReturns the result of adding the product of the two given values to this value, computed without intermediate rounding.
func advanced(by: Float80) -> Float80Returns a new value advanced by the given distance.
func distance(to: Float80) -> Float80Returns the distance from this value to the specified value.
func formReplaces this value with the remainder of itself divided by the given value.
func formReplaces this value with its square root, rounded to a representable value.
func formReplaces this value with the remainder of itself divided by the given value using truncating division.
func hash(into: inout Hasher)Hashes the essential components of this value by feeding them into the given hasher.
func isReturns a Boolean value indicating whether this instance is equal to the given value.
func isReturns a Boolean value indicating whether this instance is less than the given value.
func isReturns a Boolean value indicating whether this instance is less than or equal to the given value.
func isReturns a Boolean value indicating whether this instance should precede or tie positions with the given value in an ascending sort.
func negate()Replaces this value with its additive inverse.
func remainder(dividingReturns the remainder of this value divided by the given value.
func round()Rounds this value to an integral value using “schoolbook rounding.”
func round(FloatingRounds the value to an integral value using the specified rounding rule.
func rounded() -> Float80Returns this value rounded to an integral value using “schoolbook rounding.”
func rounded(FloatingReturns this value rounded to an integral value using the specified rounding rule.
func squareReturns the square root of the value, rounded to a representable value.
func truncatingReturns the remainder of this value divided by the given value using truncating division.
func write<Target>(to: inout Target)Writes a textual representation of this instance into the given output stream.
Type Methods
static func maximum(Float80, Float80) -> Float80Returns the greater of the two given values.
static func maximumReturns the value with greater magnitude.
static func minimum(Float80, Float80) -> Float80Returns the lesser of the two given values.
static func minimumReturns the value with lesser magnitude.
static func random(in: ClosedReturns a random value within the specified range.
static func random(in: Range<Float80>) -> Float80Returns a random value within the specified range.
static func random<T>(in: ClosedReturns a random value within the specified range, using the given generator as a source for randomness.
static func random<T>(in: Range<Float80>, using: inout T) -> Float80Returns a random value within the specified range, using the given generator as a source for randomness.
Operator Functions
static func != (Float80, Float80) -> BoolReturns a Boolean value indicating whether two values are not equal.
static func * (Float80, Float80) -> Float80Multiplies two values and produces their product, rounding to a representable value.
static func *= (inout Float80, Float80)Multiplies two values and stores the result in the left-hand-side variable, rounding to a representable value.
static func + (Float80) -> Float80Returns the given number unchanged.
static func + (Float80, Float80) -> Float80Adds two values and produces their sum, rounded to a representable value.
static func += (inout Float80, Float80)Adds two values and stores the result in the left-hand-side variable, rounded to a representable value.
static func - (Float80) -> Float80Returns the additive inverse of the specified value.
static func - (Float80) -> Float80Calculates the additive inverse of a value.
static func - (Float80, Float80) -> Float80Subtracts one value from another and produces their difference, rounded to a representable value.
static func -= (inout Float80, Float80)Subtracts the second value from the first and stores the difference in the left-hand-side variable, rounding to a representable value.
static func ... (Float80) -> PartialReturns a partial range extending upward from a lower bound.
static func ... (Float80) -> PartialReturns a partial range up to, and including, its upper bound.
static func ... (Float80, Float80) -> ClosedReturns a closed range that contains both of its bounds.
static func ..< (Float80) -> PartialReturns a partial range up to, but not including, its upper bound.
static func ..< (Float80, Float80) -> Range<Float80>Returns a half-open range that contains its lower bound but not its upper bound.
static func / (Float80, Float80) -> Float80Returns the quotient of dividing the first value by the second, rounded to a representable value.
static func /= (inout Float80, Float80)Divides the first value by the second and stores the quotient in the left-hand-side variable, rounding to a representable value.
static func < (Float80, Float80) -> BoolReturns a Boolean value indicating whether the value of the first argument is less than that of the second argument.
static func < (Float80, Float80) -> BoolReturns a Boolean value indicating whether the value of the first argument is less than that of the second argument.
static func <= (Float80, Float80) -> BoolReturns a Boolean value indicating whether the value of the first argument is less than or equal to that of the second argument.
static func <= (Float80, Float80) -> BoolReturns a Boolean value indicating whether the value of the first argument is less than or equal to that of the second argument.
static func == (Float80, Float80) -> BoolReturns a Boolean value indicating whether two values are equal.
static func == (Float80, Float80) -> BoolReturns a Boolean value indicating whether two values are equal.
static func > (Float80, Float80) -> BoolReturns a Boolean value indicating whether the value of the first argument is greater than that of the second argument.
static func > (Float80, Float80) -> BoolReturns a Boolean value indicating whether the value of the first argument is greater than that of the second argument.
static func >= (Float80, Float80) -> BoolReturns a Boolean value indicating whether the value of the first argument is greater than or equal to that of the second argument.
static func >= (Float80, Float80) -> BoolReturns a Boolean value indicating whether the value of the first argument is greater than or equal to that of the second argument.