Declaring self-regulatory pointers in Swift

Question

What will be the equivalent in Obj-C fast code?

I guess something using CMutableVoidPointer

static void *CapturingStillImageContext = &CapturingStillImageContext;

Answer 1

Maybe something like this:

var CapturingStillImageContext: COpaquePointer = nil
withUnsafePointer(&CapturingStillImageContext) {
    CapturingStillImageContext = COpaquePointer($0) }

Answer 2

CMutableVoidPointeris no longer available with Beta 3. Theres UnsafePointerand ConstUnsafePointer- you can declare it as follows:

let CapturingStillImageContext = UnsafePointer<()>()

Answer 3

, :

var SelfReferencingKey = initialize_SelfReferencingKey()

func initialize_SelfReferencingKey() -> UnsafePointer<()> {
    return withUnsafePointer(&SelfReferencingKey, { UnsafePointer($0) } )
}