Exchanges the values at the specified indices of the collection.
mutating func swapAt(_ i: Self.Index, _ j: Self.Index) Both parameters must be valid indices of the collection and not equal to endIndex. Passing the same index as both i and j has no effect.
import Swiftprotocol MutableCollection<Element> : Collection where Self.SubSequence : MutableCollectionA collection that supports subscript assignment.
associatedtype Index : Comparable where Self.Index == Self.Indices.Element, Self.Indices.Element == Self.Indices.Index, Self.Indices.Index == Self.SubSequence.IndexA type that represents a position in the collection.
associatedtype Elementassociatedtype Indexassociatedtype SubSequenceoverride subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set } Accesses a contiguous subrange of the collection’s elements.
override subscript(position: Self.Index) -> Self.Element { get set } Accesses the element at the specified position.
mutating func partition(by belongsInSecondPartition: (Self.Element) throws -> Bool) rethrows -> Self.Index Reorders the elements of the collection such that all the elements that match the given predicate are after all the elements that don’t match.
mutating func withContiguousMutableStorageIfAvailable<R>(_ body: (inout UnsafeMutableBufferPointer<Self.Element>) throws -> R) rethrows -> R? Executes a closure on the collection’s contiguous storage.
mutating func swapAt(_ i: Self.Index, _ j: Self.Index) Exchanges the values at the specified indices of the collection.