infix operator ..< { associativity none precedence 135 } Declarations func ..< <Pos : ForwardIndexType where Pos : Comparable>(_: Pos, end: Pos) Forms a half-open range that contains start, but not end. Requires: start <= end Declaration func ..<<Pos : ForwardIndexType where Pos : Comparable>(start: Pos, end: Pos) -> Range<Pos> func ..< <Pos : ForwardIndexType>(_: Pos, maximum: Pos) Forms a half-open range that contains minimum, but not maximum. Declaration func ..<<Pos : ForwardIndexType>(minimum: Pos, maximum: Pos) -> Range<Pos> func ..< <T : Comparable>(_: T, end: T) Returns a half-open interval from start to end Declaration func ..<<T : Comparable>(start: T, end: T) -> HalfOpenInterval<T>