Structure

Int8

An 8-bit signed integer value type.

Topics

Type Aliases

typealias Int8.IntegerLiteralType

A type that represents an integer literal.

typealias Int8.Magnitude

A type that can represent the absolute value of any possible value of this type.

Initializers

init()

Creates a new value equal to zero.

init(Double)

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(Float)

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

init(NSNumber)Deprecated
init<T>(T)

Creates a new instance from the given integer.

init<T>(T)

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

init?(String)

Creates a new integer value from the given string.

init?<S>(S, radix: Int)

Creates a new integer value from the given string and radix.

init(bigEndian: Int8)

Creates an integer from its big-endian representation, changing the byte order if necessary.

init(bitPattern: UInt8)

Creates a new instance with the same memory representation as the given value.

init<Other>(clamping: Other)

Creates a new instance with the representable value that’s closest to the given integer.

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.

init?<T>(exactly: T)

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

init?<T>(exactly: T)

Creates a new instance from the given integer, if it can be represented exactly.

init(from: Decoder)

Creates a new instance by decoding from the given decoder.

init(integerLiteral: Int8)

Creates an instance initialized to the specified integer value.

init(littleEndian: Int8)

Creates an integer from its little-endian representation, changing the byte order if necessary.

init<T>(truncatingIfNeeded: T)

Creates a new instance from the bit pattern of the given instance by truncating or sign-extending if needed to fit this type.

Instance Properties

var bigEndian: Int8

The big-endian representation of this integer.

var bitWidth: Int

The number of bits in the binary representation of this value.

var byteSwapped: Int8

A representation of this integer with the byte order swapped.

var customMirror: Mirror

A mirror that reflects the Int8 instance.

var customPlaygroundQuickLook: PlaygroundQuickLook

A custom playground Quick Look for the Int8 instance.

Deprecated
var description: String

A textual representation of this value.

var leadingZeroBitCount: Int

The number of leading zeros in this value’s binary representation.

var littleEndian: Int8

The little-endian representation of this integer.

var magnitude: UInt8

The magnitude of this value.

var nonzeroBitCount: Int

The number of bits equal to 1 in this value’s binary representation.

var trailingZeroBitCount: Int

The number of trailing zeros in this value’s binary representation.

var words: Int8.Words

A collection containing the words of this value’s binary representation, in order from the least significant to most significant.

Type Properties

static var bitWidth: Int

The number of bits used for the underlying binary representation of values of this type.

static var isSigned: Bool

A Boolean value indicating whether this type is a signed integer type.

static var max: Int8

The maximum representable integer in this type.

static var min: Int8

The minimum representable integer in this type.

Instance Methods

func addingReportingOverflow(Int8) -> (partialValue: Int8, overflow: Bool)

Returns the sum of this value and the given value, along with a Boolean value indicating whether overflow occurred in the operation.

func advanced(by: Int) -> Int8

Returns a value that is offset the specified distance from this value.

func distance(to: Int8) -> Int

Returns the distance from this value to the given value, expressed as a stride.

func dividedReportingOverflow(by: Int8) -> (partialValue: Int8, overflow: Bool)

Returns the quotient obtained by dividing this value by the given value, along with a Boolean value indicating whether overflow occurred in the operation.

func dividingFullWidth((high: Int8, low: Int8.Magnitude)) -> (quotient: Int8, remainder: Int8)

Returns a tuple containing the quotient and remainder of dividing the given value by this value.

func encode(to: Encoder)

Encodes this value into the given encoder.

func hash(into: inout Hasher)

Hashes the essential components of this value by feeding them into the given hasher.

Beta
func multipliedFullWidth(by: Int8) -> (high: Int8, low: Int8.Magnitude)

Returns a tuple containing the high and low parts of the result of multiplying this value by the given value.

func multipliedReportingOverflow(by: Int8) -> (partialValue: Int8, overflow: Bool)

Returns the product of this value and the given value, along with a Boolean value indicating whether overflow occurred in the operation.

func negate()

Replaces this value with its additive inverse.

func quotientAndRemainder(dividingBy: Int8) -> (quotient: Int8, remainder: Int8)

Returns the quotient and remainder of this value divided by the given value.

func remainderReportingOverflow(dividingBy: Int8) -> (partialValue: Int8, overflow: Bool)

Returns the remainder after dividing this value by the given value, along with a Boolean value indicating whether overflow occurred during division.

func signum() -> Int8

Returns -1 if this value is negative and 1 if it’s positive; otherwise, 0.

func subtractingReportingOverflow(Int8) -> (partialValue: Int8, overflow: Bool)

Returns the difference obtained by subtracting the given value from this value, along with a Boolean value indicating whether overflow occurred in the operation.

func unsafeAdding(Int8) -> Int8

Returns the sum of this value and the given value without checking for arithmetic overflow.

func unsafeDivided(by: Int8) -> Int8

Returns the quotient obtained by dividing this value by the given value without checking for arithmetic overflow.

func unsafeMultiplied(by: Int8) -> Int8

Returns the product of this value and the given value without checking for arithmetic overflow.

func unsafeSubtracting(Int8) -> Int8

Returns the difference obtained by subtracting the given value from this value without checking for arithmetic overflow.

Type Methods

static func random(in: ClosedRange<Int8>) -> Int8

Returns a random value within the specified range.

Beta
static func random(in: Range<Int8>) -> Int8

Returns a random value within the specified range.

Beta
static func random<T>(in: ClosedRange<Int8>, using: inout T) -> Int8

Returns a random value within the specified range, using the given generator as a source for randomness.

Beta
static func random<T>(in: Range<Int8>, using: inout T) -> Int8

Returns a random value within the specified range, using the given generator as a source for randomness.

Beta

Operator Functions

static func != <Other>(Int8, Other) -> Bool

Returns a Boolean value indicating whether the two given values are not equal.

static func != (Int8, Int8) -> Bool

Returns a Boolean value indicating whether two values are not equal.

Beta
static func % (Int8, Int8) -> Int8

Returns the remainder of dividing the first value by the second.

static func %= (inout Int8, Int8)

Divides the first value by the second and stores the remainder in the left-hand-side variable.

static func & (Int8, Int8) -> Int8

Returns the result of performing a bitwise AND operation on the two given values.

Beta
static func & (Int8, Int8) -> Int8

Returns the result of performing a bitwise AND operation on the two given values.

Beta
static func &* (Int8, Int8) -> Int8

Returns the product of the two given values, discarding any overflow.

static func &*= (inout Int8, Int8)

Multiplies two values and stores the result in the left-hand-side variable, discarding any overflow.

Beta
static func &+ (Int8, Int8) -> Int8

Returns the sum of the two given values, discarding any overflow.

Beta
static func &+= (inout Int8, Int8)

Adds two values and stores the result in the left-hand-side variable, discarding any overflow.

Beta
static func &- (Int8, Int8) -> Int8

Returns the difference of the two given values, discarding any overflow.

Beta
static func &-= (inout Int8, Int8)

Subtracts the second value from the first and stores the difference in the left-hand-side variable, discarding any overflow.

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static func &<< <Other>(Int8, Other) -> Int8

Returns the result of shifting a value’s binary representation the specified number of digits to the left, masking the shift amount to the type’s bit width.

static func &<< (Int8, Int8) -> Int8

Returns the result of shifting a value’s binary representation the specified number of digits to the left, masking the shift amount to the type’s bit width.

Beta
static func &<< (Int8, Int8) -> Int8

Returns the result of shifting a value’s binary representation the specified number of digits to the left, masking the shift amount to the type’s bit width.

Beta
static func &<<= <Other>(inout Int8, Other)

Returns the result of shifting a value’s binary representation the specified number of digits to the left, masking the shift amount to the type’s bit width, and stores the result in the left-hand-side variable.

static func &<<= (inout Int8, Int8)

Returns the result of shifting a value’s binary representation the specified number of digits to the left, masking the shift amount to the type’s bit width, and stores the result in the left-hand-side variable.

static func &= (inout Int8, Int8)

Stores the result of performing a bitwise AND operation on the two given values in the left-hand-side variable.

static func &>> <Other>(Int8, Other) -> Int8

Returns the result of shifting a value’s binary representation the specified number of digits to the right, masking the shift amount to the type’s bit width.

static func &>> (Int8, Int8) -> Int8

Returns the result of shifting a value’s binary representation the specified number of digits to the right, masking the shift amount to the type’s bit width.

Beta
static func &>> (Int8, Int8) -> Int8

Returns the result of shifting a value’s binary representation the specified number of digits to the right, masking the shift amount to the type’s bit width.

Beta
static func &>>= (inout Int8, Int8)

Calculates the result of shifting a value’s binary representation the specified number of digits to the right, masking the shift amount to the type’s bit width, and stores the result in the left-hand-side variable.

static func &>>= <Other>(inout Int8, Other)

Calculates the result of shifting a value’s binary representation the specified number of digits to the right, masking the shift amount to the type’s bit width, and stores the result in the left-hand-side variable.

static func * (Int8, Int8) -> Int8

Multiplies two values and produces their product.

static func *= (inout Int8, Int8)

Multiplies two values and stores the result in the left-hand-side variable.

static func + (Int8) -> Int8

Returns the given number unchanged.

static func + (Int8, Int8) -> Int8

Adds two values and produces their sum.

static func += (inout Int8, Int8)

Adds two values and stores the result in the left-hand-side variable.

static func - (Int8) -> Int8

Returns the additive inverse of the specified value.

static func - (Int8, Int8) -> Int8

Subtracts one value from another and produces their difference.

static func -= (inout Int8, Int8)

Subtracts the second value from the first and stores the difference in the left-hand-side variable.

static func ... (Int8) -> PartialRangeFrom<Int8>

Returns a partial range extending upward from a lower bound.

Beta
static func ... (Int8) -> PartialRangeThrough<Int8>

Returns a partial range up to, and including, its upper bound.

Beta
static func ... (Int8, Int8) -> ClosedRange<Int8>

Returns a closed range that contains both of its bounds.

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static func ... (Int8, Int8) -> ClosedRange<Int8>

Returns a countable closed range that contains both of its bounds.

Beta
static func ..< (Int8) -> PartialRangeUpTo<Int8>

Returns a partial range up to, but not including, its upper bound.

static func ..< (Int8, Int8) -> Range<Int8>

Returns a half-open range that contains its lower bound but not its upper bound.

Beta
static func / (Int8, Int8) -> Int8

Returns the quotient of dividing the first value by the second.

static func /= (inout Int8, Int8)

Divides the first value by the second and stores the quotient in the left-hand-side variable.

static func < <Other>(Int8, Other) -> Bool

Returns a Boolean value indicating whether the value of the first argument is less than that of the second argument.

static func < (Int8, Int8) -> Bool

Returns a Boolean value indicating whether the value of the first argument is less than that of the second argument.

Beta
static func << <Other>(Int8, Other) -> Int8

Returns the result of shifting a value’s binary representation the specified number of digits to the left.

static func << <RHS>(Int8, RHS) -> Int8

Returns the result of shifting a value’s binary representation the specified number of digits to the left.

static func <<= <Other>(inout Int8, Other)

Stores the result of shifting a value’s binary representation the specified number of digits to the left in the left-hand-side variable.

static func <= <Other>(Int8, Other) -> Bool

Returns a Boolean value indicating whether the value of the first argument is less than or equal to that of the second argument.

static func <= (Int8, Int8) -> Bool

Returns a Boolean value indicating whether the value of the first argument is less than or equal to that of the second argument.

Beta
static func <= (Int8, Int8) -> Bool

Returns a Boolean value indicating whether the value of the first argument is less than or equal to that of the second argument.

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static func == <Other>(Int8, Other) -> Bool

Returns a Boolean value indicating whether the two given values are equal.

static func == (Int8, Int8) -> Bool

Returns a Boolean value indicating whether two values are equal.

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static func > <Other>(Int8, Other) -> Bool

Returns a Boolean value indicating whether the value of the first argument is greater than that of the second argument.

static func > (Int8, Int8) -> Bool

Returns a Boolean value indicating whether the value of the first argument is greater than that of the second argument.

Beta
static func > (Int8, Int8) -> Bool

Returns a Boolean value indicating whether the value of the first argument is greater than that of the second argument.

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static func >= <Other>(Int8, Other) -> Bool

Returns a Boolean value indicating whether the value of the first argument is greater than or equal to that of the second argument.

static func >= (Int8, Int8) -> Bool

Returns a Boolean value indicating whether the value of the first argument is greater than or equal to that of the second argument.

Beta
static func >= (Int8, Int8) -> Bool

Returns a Boolean value indicating whether the value of the first argument is greater than or equal to that of the second argument.

Beta
static func >> <Other>(Int8, Other) -> Int8

Returns the result of shifting a value’s binary representation the specified number of digits to the right.

static func >> <RHS>(Int8, RHS) -> Int8

Returns the result of shifting a value’s binary representation the specified number of digits to the right.

static func >>= <Other>(inout Int8, Other)

Stores the result of shifting a value’s binary representation the specified number of digits to the right in the left-hand-side variable.

static func ^ (Int8, Int8) -> Int8

Returns the result of performing a bitwise XOR operation on the two given values.

Beta
static func ^ (Int8, Int8) -> Int8

Returns the result of performing a bitwise XOR operation on the two given values.

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static func ^= (inout Int8, Int8)

Stores the result of performing a bitwise XOR operation on the two given values in the left-hand-side variable.

static func | (Int8, Int8) -> Int8

Returns the result of performing a bitwise OR operation on the two given values.

Beta
static func | (Int8, Int8) -> Int8

Returns the result of performing a bitwise OR operation on the two given values.

Beta
static func |= (inout Int8, Int8)

Stores the result of performing a bitwise OR operation on the two given values in the left-hand-side variable.

static func ~ (Int8) -> Int8

Returns the inverse of the bits set in the argument.

Structures

struct Int8.Words

A type that represents the words of this integer.

See Also

Signed Integers

struct Int16

A 16-bit signed integer value type.

struct Int32

A 32-bit signed integer value type.

struct Int64

A 64-bit signed integer value type.

Beta Software

This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.

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