Type Property

radix

The radix, or base of exponentiation, for this floating-point type.

Declaration

static var radix: Int { get }

Discussion

All binary floating-point types have a radix of 2. The magnitude of a floating-point value x of type F can be calculated by using the following formula, where ** is exponentiation:

let magnitude = x.significand * F.radix ** x.exponent

See Also

Working with Binary Representation

var bitPattern: UInt32

The bit pattern of the value’s encoding.

var significandBitPattern: UInt32

The raw encoding of the value’s significand field.

var significandWidth: Int

The number of bits required to represent the value’s significand.

var exponentBitPattern: UInt

The raw encoding of the value’s exponent field.

static var significandBitCount: Int

The available number of fractional significand bits.

static var exponentBitCount: Int

The number of bits used to represent the type’s exponent.

init(bitPattern: UInt32)

Creates a new value with the given bit pattern.

init(sign: FloatingPointSign, exponentBitPattern: UInt, significandBitPattern: UInt32)

Creates a new instance from the specified sign and bit patterns.

init(nan: Float.RawSignificand, signaling: Bool)

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

typealias Float.Exponent

A type that can represent any written exponent.

typealias Float.RawSignificand

A type that represents the encoded significand of a value.