Instance Methodswift 6.1.2Swift
formIndex(before:)
func formIndex(before i: inout LazyFilterSequence<Base>.Index) func formIndex(before i: inout LazyFilterSequence<Base>.Index) ss18LazyFilterSequenceVsSKRzrlE9formIndex6beforey0E0Qzz_tF What are these?3IPBNwhere Base:BidirectionalCollectionimport Swift@frozen struct LazyFilterSequence<Base> where Base : SequenceA sequence whose elements consist of the elements of some base sequence that also satisfy a given predicate.
protocol BidirectionalCollection<Element> : Collection where Self.Indices : BidirectionalCollection, Self.SubSequence : BidirectionalCollectionA collection that supports backward as well as forward traversal.
func index(before i: LazyFilterSequence<Base>.Index) -> LazyFilterSequence<Base>.Index