iOS Swift max(), min()

Question

In Swift, I am trying to use the max() and min() functions.

max<T : Comparable>(x: T, y: T, rest: T...) -> T min<T : Comparable>(x: T, y: T, rest: T...) -> T 

I am trying to use the max() function in this way:

var paddleX: Int = Int(paddle.position.x) + Int(location.x - previousLocation.x) max(paddleX, paddle.frame.x/2, nil) 

but I am getting this error:

Cannot convert the expression's type of '()' to type 'NilType'

Is the nil causing this problem? What is rest: T... supposed to be?

Answer 1

Don't pass anything at all there. It's a variadic function, you can call it with two or more parameters.