 
 /**
 Returns true if the left-hand size is greater than or equal to the right-hand size
+
+    let s1 = C4Size(3,4)
+    let s2 = C4Size(4,3)
+    let s3 = C4Size(2,2)
+
+    s1 >= s2 //-> true
+    s2 >= s3 //-> true
 */
 public func >= (lhs: C4Size, rhs: C4Size) -> Bool {
     return lhs.width * lhs.height >= rhs.width * rhs.height


/**
Returns true if the left-hand size is bigger than the right-hand size
*/
public func > (lhs: C4Size, rhs: C4Size) -> Bool {
    return lhs.width * lhs.height > rhs.width * rhs.height


/**
Returns true if the left-hand size is smaller than or equal to the right-hand size

    let s1 = C4Size(3,4)
    let s2 = C4Size(4,3)
    let s3 = C4Size(2,2)

    s1 <= s2 //-> true
    s2 <= s3 //-> false
*/
public func <= (lhs: C4Size, rhs: C4Size) -> Bool {
    return lhs.width * lhs.height <= rhs.width * rhs.height
