MutableCollectionType

protocol MutableCollectionType

A collection that supports subscript assignment.

For any instance a of a type conforming to MutableCollectionType, :

a[i] = x
let y = a[i]

is equivalent to :

a[i] = x
let y = x
Inheritance CollectionType, SequenceType, _CollectionType, _SequenceType, _Sequence_Type View Protocol Hierarchy →
Associated Types
Generator : GeneratorType

A type that provides the sequence's iteration interface and encapsulates its iteration state.

Index : ForwardIndexType

A type that represents a valid position in the collection.

Valid indices consist of the position of every element and a "past the end" position that's not valid for use as a subscript.

_Element

A type that represents a valid position in the collection.

Valid indices consist of the position of every element and a "past the end" position that's not valid for use as a subscript.
Import import Swift

Instance Variables

var endIndex: Index Required

The collection's "past the end" position.

endIndex is not a valid argument to subscript, and is always reachable from startIndex by zero or more applications of successor().

Declaration

var endIndex: Index { get }

Declared In

_CollectionType
var startIndex: Index Required

The position of the first element in a non-empty collection.

Identical to endIndex in an empty collection.

Declaration

var startIndex: Index { get }

Declared In

_CollectionType

Subscripts

subscript(_: Self.Index) Required

Declaration

subscript(position: Self.Index) -> Self.Generator.Element { get set }

Declared In

MutableCollectionType, CollectionType
subscript(_: Index) Required

Declaration

subscript(_i: Index) -> _Element { get }

Declared In

_CollectionType

Instance Methods

func generate() Required

Return a generator over the elements of this sequence.

Complexity: O(1)

Declaration

func generate() -> Generator

Declared In

SequenceType, _Sequence_Type