Standard way to “clamp” a number between two values in Swift

Question

Given:

let a = 4.2
let b = -1.3
let c = 6.4

I want to know the simplest, Swiftiest way to clamp these values to a given range, say 0...

Answer 1

Following up on @Fattie's answer and my comment, here's my suggestion for clarity:

extension Comparable {
    func clamped(_ a: Self, _ b: Self) -> Self {
        max(min(self, a), b)
    }
}