AbsoluteValuable

protocol AbsoluteValuable

A type that supports an "absolute value" function.

Inheritance Comparable, Equatable, IntegerLiteralConvertible, SignedNumberType, _Comparable, _SignedNumberType View Protocol Hierarchy →
Associated Types
IntegerLiteralType
Import import Swift

Initializers

init(integerLiteral:) Required

Create an instance initialized to value.

Declaration

init(integerLiteral value: IntegerLiteralType)

Declared In

IntegerLiteralConvertible

Static Methods

static func abs(_:) Required

Returns the absolute value of x

Declaration

static func abs(x: Self) -> Self

Instance Methods

func <(_:rhs:) Required

A strict total order over instances of Self

Declaration

func <(lhs: Self, rhs: Self) -> Bool

Declared In

_Comparable
func <=(_:rhs:)

Declaration

func <=(lhs: Self, rhs: Self) -> Bool

Declared In

Comparable
func ==(_:rhs:) Required

Return true if lhs is equal to rhs.

Equality implies substitutability. When x == y, x and y are interchangeable in any code that only depends on their values.

Class instance identity as distinguished by triple-equals === is notably not part of an instance's value. Exposing other non-value aspects of Equatable types is discouraged, and any that are exposed should be explicitly pointed out in documentation.

Equality is an equivalence relation

  • x == x is true
  • x == y implies y == x
  • x == y and y == z implies x == z

Inequality is the inverse of equality, i.e. !(x == y) iff x != y

Declaration

func ==(lhs: Self, rhs: Self) -> Bool

Declared In

Equatable
func >(_:rhs:)

Declaration

func >(lhs: Self, rhs: Self) -> Bool

Declared In

Comparable
func >=(_:rhs:)

Declaration

func >=(lhs: Self, rhs: Self) -> Bool

Declared In

Comparable
prefix func -(_:) Required

Return the result of negating x.

Declaration

prefix func -(x: Self) -> Self

Declared In

SignedNumberType
func -(_:rhs:) Required

Return the difference between lhs and rhs.

Declaration

func -(lhs: Self, rhs: Self) -> Self

Declared In

_SignedNumberType