Declaring self-referencing pointers in Swift [duplicate]

Answer 1

CMutableVoidPointer isn't available anymore as of Beta 3. Theres UnsafePointer and ConstUnsafePointer - you can declare it this way:

let CapturingStillImageContext = UnsafePointer<()>()

Answer 2

I've been using this technique, but it would be nice to find a more elegant solution:

var SelfReferencingKey = initialize_SelfReferencingKey()

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

Answer 3

Probably something like this:

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