protocol IntervalType An interval over a Comparable type. Inheritance View Protocol Hierarchy → Associated Types Bound : Comparable The type of the Interval's endpoints. Import import Swift Instance Variables var end: Self.Bound Required The Interval's upper bound. Invariant: start <= end. Declaration var end: Self.Bound { get } var isEmpty: Bool Required true iff self is empty. Declaration var isEmpty: Bool { get } var start: Self.Bound Required The Interval's lower bound. Invariant: start <= end. Declaration var start: Self.Bound { get } Instance Methods func clamp(_:) Required Returns rhs clamped to self. The bounds of the result, even if it is empty, are always within the bounds of self. Declaration func clamp(intervalToClamp: Self) -> Self func contains(_:) Required Returns true iff the interval contains value. Declaration func contains(value: Self.Bound) -> Bool Default Implementations func overlaps(_:) Returns true if lhs and rhs have a non-empty intersection. Declaration func overlaps<I : IntervalType where I.Bound == Bound>(other: I) -> Bool