UInt8

Citizens in Swift

Conformances

• protocol AdditiveArithmetic

  A type with values that support addition and subtraction.

• protocol BinaryInteger

  An integer type with a binary representation.

• protocol CVarArg

  A type whose instances can be encoded, and appropriately passed, as elements of a C va_list.

• protocol Comparable

  A type that can be compared using the relational operators <, <=, >=, and >.

• protocol CustomReflectable

  A type that explicitly supplies its own mirror.

• protocol CustomStringConvertible

  A type with a customized textual representation.

• protocol Decodable

  A type that can decode itself from an external representation.

• protocol Encodable

  A type that can encode itself to an external representation.

• protocol Equatable

  A type that can be compared for value equality.

• protocol ExpressibleByIntegerLiteral

  A type that can be initialized with an integer literal.

• protocol FixedWidthInteger

  An integer type that uses a fixed size for every instance.

• protocol Hashable

  A type that can be hashed into a Hasher to produce an integer hash value.

• protocol LosslessStringConvertible

  A type that can be represented as a string in a lossless, unambiguous way.

• protocol Numeric

  A type with values that support multiplication.

• protocol SIMDScalar

  A type that can be used as an element in a SIMD vector.

• protocol Sendable

  A type whose values can safely be passed across concurrency domains by copying.

• protocol Strideable

  A type representing continuous, one-dimensional values that can be offset and measured.

• protocol UnsignedInteger

  An integer type that can represent only nonnegative values.

Members

• init(Double)

  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(Float16)

  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(ascii: Unicode.Scalar)

  Construct with value v.value.

• init(bitPattern: Int8)

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

• 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: Float16)

  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(from: Decoder) throws

  Creates a new instance by decoding from the given decoder.

• static var bitWidth: Int

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

• var byteSwapped: UInt8

  A representation of this integer with the byte order swapped.

• var customMirror: Mirror

  A mirror that reflects the UInt8 instance.

• var leadingZeroBitCount: Int

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

• 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: UInt8.Words

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

• static func % (UInt8, UInt8) -> UInt8

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

• static func %= (inout UInt8, UInt8)

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

• static func & (UInt8, UInt8) -> UInt8

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

• static func &<< (UInt8, UInt8) -> UInt8

  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 &<<= (inout UInt8, UInt8)

  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 UInt8, UInt8)

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

• static func &>> (UInt8, UInt8) -> UInt8

  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 &>>= (inout UInt8, UInt8)

  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 * (UInt8, UInt8) -> UInt8

  Multiplies two values and produces their product.

• static func *= (inout UInt8, UInt8)

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

• static func + (UInt8, UInt8) -> UInt8

  Adds two values and produces their sum.

• static func += (inout UInt8, UInt8)

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

• static func - (UInt8, UInt8) -> UInt8

  Subtracts one value from another and produces their difference.

• static func -= (inout UInt8, UInt8)

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

• static func / (UInt8, UInt8) -> UInt8

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

• static func /= (inout UInt8, UInt8)

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

• static func < (UInt8, UInt8) -> Bool
• static func <= (UInt8, UInt8) -> Bool
• static func == (UInt8, UInt8) -> Bool
• static func > (UInt8, UInt8) -> Bool
• static func >= (UInt8, UInt8) -> Bool
• static func ^ (UInt8, UInt8) -> UInt8

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

• static func ^= (inout UInt8, UInt8)

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

• static func | (UInt8, UInt8) -> UInt8

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

• static func |= (inout UInt8, UInt8)

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

• func addingReportingOverflow(UInt8) -> (partialValue: UInt8, 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 dividedReportingOverflow(by: UInt8) -> (partialValue: UInt8, 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: UInt8, low: UInt8.Magnitude)) -> (quotient: UInt8, remainder: UInt8)

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

• func encode(to: Encoder) throws

  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.

• func multipliedFullWidth(by: UInt8) -> (high: UInt8, low: UInt8.Magnitude)

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

• func multipliedReportingOverflow(by: UInt8) -> (partialValue: UInt8, 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 remainderReportingOverflow(dividingBy: UInt8) -> (partialValue: UInt8, 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() -> UInt8

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

• func subtractingReportingOverflow(UInt8) -> (partialValue: UInt8, 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.

• struct SIMD16Storage

  Storage for a vector of 16 integers.

• struct SIMD2Storage

  Storage for a vector of two integers.

• struct SIMD32Storage

  Storage for a vector of 32 integers.

• struct SIMD4Storage

  Storage for a vector of four integers.

• struct SIMD64Storage

  Storage for a vector of 64 integers.

• struct SIMD8Storage

  Storage for a vector of eight integers.

• struct Words

  A type that represents the words of this integer.

• typealias IntegerLiteralType

  A type that represents an integer literal.

• typealias Magnitude

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

• typealias SIMDMaskScalar
• var customPlaygroundQuickLook: _PlaygroundQuickLook

  A custom playground Quick Look for the UInt8 instance.

Features

• init()

  Creates a new value equal to zero.

• init?<S>(S, radix: Int)

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

• static var max: Self

  The maximum representable integer in this type.

• static var min: Self

  The minimum representable integer in this type.

• static func random(in: ClosedRange<Self>) -> Self

  Returns a random value within the specified range.

• static func random(in: Range<Self>) -> Self

  Returns a random value within the specified range.

• static func random<T>(in: ClosedRange<Self>, using: inout T) -> Self

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

• static func random<T>(in: Range<Self>, using: inout T) -> Self

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

• var magnitude: Self

  The magnitude of this value.

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

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

• static func != (Self, Self) -> Bool
• static func &* (Self, Self) -> Self

  Returns the product of the two given values, wrapping the result in case of any overflow.

• static func &*= (inout Self, Self)

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

• static func &+ (Self, Self) -> Self

  Returns the sum of the two given values, wrapping the result in case of any overflow.

• static func &+= (inout Self, Self)

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

• static func &- (Self, Self) -> Self

  Returns the difference of the two given values, wrapping the result in case of any overflow.

• static func &-= (inout Self, Self)

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

• static func + (Self) -> Self

  Returns the given number unchanged.

• static func ... (Self) -> PartialRangeFrom<Self>

  Returns a partial range extending upward from a lower bound.

• static func ... (Self) -> PartialRangeThrough<Self>

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

• static func ... (Self, Self) -> ClosedRange<Self>

  Returns a closed range that contains both of its bounds.

• static func ..< (Self) -> PartialRangeUpTo<Self>

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

• static func ..< (Self, Self) -> Range<Self>

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

• static func < <Other>(Self, Other) -> Bool

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

• static func <= <Other>(Self, 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 <= (Self, Self) -> Bool
• static func == (Self, Self) -> Bool
• static func == <Other>(Self, Other) -> Bool

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

• static func > <Other>(Self, Other) -> Bool

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

• static func > (Self, Self) -> Bool
• static func >= <Other>(Self, 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 >= (Self, Self) -> Bool

Available in Foundation

Members

• init(CGFloat)
• init?(exactly: NSNumber)
• init(truncating: NSNumber)
• init(NSNumber)

Extension in MultipartKit

Conformances

• protocol MultipartPartConvertible

Extension in ArgumentParser

Conformances

• protocol ExpressibleByArgument

  A type that can be expressed as a command-line argument.

Extension in SwiftASN1

Conformances

• protocol ASN1IntegerRepresentable

  A protocol that represents any internal object that can present itself as an INTEGER, or be parsed from an INTEGER.

• protocol DERImplicitlyTaggable

  An ASN.1 node that can tolerate having an implicit tag.

• protocol DERParseable

  Defines a type that can be parsed from a DER-encoded form.

• protocol DERSerializable

  Defines a type that can be serialized in DER-encoded form.

Features

• init(asn1Any: ASN1Any) throws

  Construct this node from an ASN.1 ANY object.

• init(asn1Any: ASN1Any, withIdentifier: ASN1Identifier) throws

  Construct this node from an ASN.1 ANY object.

Extension in Atomics

Conformances

• protocol AtomicInteger

  A type that supports atomic integer operations through a separate atomic storage representation.

• protocol AtomicValue

  A type that supports atomic operations through a separate atomic storage representation.

Members

• struct AtomicRepresentation

Extension in Grammar

Conformances

• protocol ASCIITerminal

  A terminal type that can match an ASCII pattern.

• protocol UTF8Terminal

  A terminal type that can match a UTF-8 code unit pattern.

Extension in JSONDecoding

Conformances

• protocol JSONDecodable

  A type that can be decoded from a JSON variant value.

Extension in JSONEncoding

Conformances

• protocol JSONEncodable

  A type that can be encoded to a JSON variant value.

Extension in BSONDecoding

Conformances

• protocol BSONDecodable

  A type that can be decoded from a BSON variant value backed by some type of storage not particular to the decoded type.

Extension in NIOConcurrencyHelpers

Conformances

• protocol AtomicPrimitive

  The protocol that all types that can be made atomic must conform to.

• protocol NIOAtomicPrimitive

  The protocol that all types that can be made atomic must conform to.

Members

• static let atomic_add: (OpaquePointer, uint_least8_t) -> uint_least8_t
• static let atomic_compare_and_exchange: (OpaquePointer, uint_least8_t, uint_least8_t) -> Bool
• static let atomic_create: (uint_least8_t) -> OpaquePointer
• static let atomic_destroy: (OpaquePointer) -> Void
• static let atomic_exchange: (OpaquePointer, uint_least8_t) -> uint_least8_t
• static let atomic_load: (OpaquePointer) -> uint_least8_t
• static let atomic_store: (OpaquePointer, uint_least8_t) -> Void
• static let atomic_sub: (OpaquePointer, uint_least8_t) -> uint_least8_t
• static let nio_atomic_add: (UnsafeMutablePointer<catmc_nio_atomic_uint_least8_t>, uint_least8_t) -> uint_least8_t
• static let nio_atomic_compare_and_exchange: (UnsafeMutablePointer<catmc_nio_atomic_uint_least8_t>, uint_least8_t, uint_least8_t) -> Bool
• static let nio_atomic_create_with_existing_storage: (UnsafeMutablePointer<catmc_nio_atomic_uint_least8_t>, uint_least8_t) -> Void
• static let nio_atomic_exchange: (UnsafeMutablePointer<catmc_nio_atomic_uint_least8_t>, uint_least8_t) -> uint_least8_t
• static let nio_atomic_load: (UnsafeMutablePointer<catmc_nio_atomic_uint_least8_t>) -> uint_least8_t
• static let nio_atomic_store: (UnsafeMutablePointer<catmc_nio_atomic_uint_least8_t>, uint_least8_t) -> Void
• static let nio_atomic_sub: (UnsafeMutablePointer<catmc_nio_atomic_uint_least8_t>, uint_least8_t) -> uint_least8_t
• typealias AtomicWrapper

Extension in NIOWebSocket

Members

• init(webSocketOpcode: WebSocketOpcode)

  Create a UInt8 corresponding to a given WebSocketOpcode.

Extension in SwiftSyntaxBuilder

Conformances

• protocol ExpressibleByLiteralSyntax

  A Swift type whose value can be represented directly in source code by a Swift literal.

Extension in JSONDecoding

Conformances

• protocol JSONDecodable

  A type that can be decoded from a JSON variant value.

Extension in JSONEncoding

Conformances

• protocol JSONEncodable

Extension in Vapor

Conformances

• protocol AsyncRequestDecodable

  Can convert Request to a Self.

• protocol AsyncResponseEncodable

  Can convert self to a Response.

• protocol Content

  Convertible to / from content in an HTTP message.

• protocol RequestDecodable

  Can convert Request to a Self.

• protocol ResponseEncodable

  Can convert self to a Response.

Features

• func encodeResponse(status: HTTPStatus, headers: HTTPHeaders, for: Request) -> EventLoopFuture<Response>

  Asynchronously encodes Self into a Response, setting the supplied status and headers.