underestimatedCount
var underestimatedCount: Int { get }
var underestimatedCount: Int { get }
import Swift
@frozen struct AnyCollection<Element>
A type-erased wrapper over any collection with indices that support forward traversal.
@frozen struct Int
A signed integer value type.
init(_ other: AnyCollection<Element>)
Creates an AnyCollection
having the same underlying collection as other
.
init<C>(_ base: C) where Element == C.Element, C : BidirectionalCollection
Creates a type-erased collection that wraps the given collection.
init<C>(_ base: C) where Element == C.Element, C : RandomAccessCollection
Creates a type-erased collection that wraps the given collection.
init<C>(_ base: C) where Element == C.Element, C : Collection
Creates a type-erased collection that wraps the given collection.
init(_ other: AnyRandomAccessCollection<Element>)
Creates an AnyCollection
having the same underlying collection as other
.
init(_ other: AnyBidirectionalCollection<Element>)
Creates an AnyCollection
having the same underlying collection as other
.
var count: Int { get }
The number of elements.
var endIndex: AnyCollection<Element>.Index { get }
The collection’s “past the end” position—that is, the position one greater than the last valid subscript argument.
var startIndex: AnyCollection<Element>.Index { get }
The position of the first element in a non-empty collection.
subscript(bounds: Range<AnyCollection<Element>.Index>) -> AnyCollection<Element>.SubSequence { get }
subscript(position: AnyCollection<Element>.Index) -> Element { get }
Accesses the element indicated by position
.
func distance(from start: AnyCollection<Element>.Index, to end: AnyCollection<Element>.Index) -> Int
func drop(while predicate: (Element) throws -> Bool) rethrows -> AnyCollection<Element>
func dropFirst(_ n: Int = 1) -> AnyCollection<Element>
func dropLast(_ n: Int = 1) -> AnyCollection<Element>
func filter(_ isIncluded: (Element) throws -> Bool) rethrows -> [Element]
func forEach(_ body: (Element) throws -> Void) rethrows
func formIndex(_ i: inout AnyCollection<Element>.Index, offsetBy n: Int)
func formIndex(_ i: inout AnyCollection<Element>.Index, offsetBy n: Int, limitedBy limit: AnyCollection<Element>.Index) -> Bool
func formIndex(after i: inout AnyCollection<Element>.Index)
func index(_ i: AnyCollection<Element>.Index, offsetBy n: Int) -> AnyCollection<Element>.Index
func index(_ i: AnyCollection<Element>.Index, offsetBy n: Int, limitedBy limit: AnyCollection<Element>.Index) -> AnyCollection<Element>.Index?
func index(after i: AnyCollection<Element>.Index) -> AnyCollection<Element>.Index
func makeIterator() -> AnyCollection<Element>.Iterator
Returns an iterator over the elements of this collection.
func map<T, E>(_ transform: (Element) throws(E) -> T) throws(E) -> [T] where E : Error
func prefix(_ maxLength: Int = 1) -> AnyCollection<Element>
func prefix(while predicate: (Element) throws -> Bool) rethrows -> AnyCollection<Element>
func suffix(_ maxLength: Int) -> AnyCollection<Element>
typealias Index = AnyIndex
typealias Indices = DefaultIndices<AnyCollection<Element>>
typealias Iterator = AnyIterator<Element>
typealias SubSequence = AnyCollection<Element>