     
     /**
     Initializes a new C4Rect with the origin {0,0} and the size {0,0}
+    
+        let r = C4Rect()
     */
     public init() {
         self.init(0,0,0,0)

    /**
    Returns whether two rectangles intersect.

    :param: rect1	The first rectangle to examine.
    :param: rect2	The second rectangle to examine.
    :returns:	true if the two specified rectangles intersect; otherwise, false.

//MARK: - Comparing
/**
Checks to see if two C4Rects share identical origin and size

    let r1 = C4Rect(0,0,10,10)
    let r2 = C4Rect(0,0,10,10.5)
    println(r1 == r2) //-> false

:returns: A bool, `true` if the rects are identical, otherwise `false`.
*/
public func == (lhs: C4Rect, rhs: C4Rect) -> Bool {
    return lhs.origin == rhs.origin && lhs.size == rhs.size
