ClosedRange.Index
A type that represents a position in the collection.
Declaration
@frozen enum IndexOverview
Valid indices consist of the position of every element and a “past the end” position that’s not valid for use as a subscript argument.
A type that represents a position in the collection.
@frozen enum IndexValid indices consist of the position of every element and a “past the end” position that’s not valid for use as a subscript argument.