Instance Methodswift-algorithms 1.2.1Algorithms
index(before:)
Compacted.swift:126func index(before i: Index) -> Index func index(before i: Index) -> Index s10Algorithms19CompactedCollectionVAASKRzrlE5index6beforeAC5IndexVyxq__GAH_tF What are these?6KEBJwhere Base:BidirectionalCollection, Base.Element == Element?import AlgorithmsSwift Algorithms is an open-source package of sequence and collection algorithms, along with their related types.
struct CompactedCollection<Base, Element> where Base : Collection, Base.Element == Element?A Collection that iterates over every non-nil element from the original Collection.
struct Indexprotocol BidirectionalCollection<Element> : Collection where Self.Indices : BidirectionalCollection, Self.SubSequence : BidirectionalCollectionA collection that supports backward as well as forward traversal.
@frozen enum Optional<Wrapped> where Wrapped : ~CopyableA type that represents either a wrapped value or the absence of a value.