Merge pull request #29 from hyperoslo/improve/comparison

Add != and !== for collection of items

Sources/Shared/Item.swift

@@ -318,6 +318,17 @@ public func ==(lhs: Item, rhs: Item) -> Bool {
     compareRelations(lhs, rhs)
 }
 
+/**
+ Item Equatable implementation
+ - parameter lhs: Left hand Item
+ - parameter rhs: Right hand Item
+
+ - returns: A boolean value, true if both Item are not equal
+ */
+public func != (lhs: [Item], rhs: [Item]) -> Bool {
+  return !(lhs == rhs)
+}
+
 /**
  Check if Item's are truly equal by including size in comparison
 
@@ -342,6 +353,16 @@ public func ===(lhs: Item, rhs: Item) -> Bool {
   return equal
 }
 
+/**
+ A collection of Item Equatable implementation to see if they are truly not equal
+ - parameter lhs: Left hand collection of Items
+ - parameter rhs: Right hand collection of Items
+ - returns: A boolean value, true if both Item are not equal
+ */
+public func !== (lhs: [Item], rhs: [Item]) -> Bool {
+  return !(lhs === rhs)
+}
+
 /**
  A reverse Equatable implementation for comparing Item's
  - parameter lhs: Left hand Item