func myFunc() {
        /*** Display the device version ***/
        switch Device.version() {
            /*** iPhone ***/
            case .iPhone4:       print("It's an iPhone 4")
            case .iPhone4S:      print("It's an iPhone 4S")
            case .iPhone5:       print("It's an iPhone 5")
            case .iPhone5C:      print("It's an iPhone 5C")
            case .iPhone5S:      print("It's an iPhone 5S")
            case .iPhone6:       print("It's an iPhone 6")
            case .iPhone6S:      print("It's an iPhone 6S")
            case .iPhone6Plus:   print("It's an iPhone 6 Plus")
            case .iPhone6PlusS:  print("It's an iPhone 6 Plus S")
            
            /*** iPad ***/
            case .iPad1:         print("It's an iPad 1")
            case .iPad2:         print("It's an iPad 2")
            case .iPad3:         print("It's an iPad 3")
            case .iPad4:         print("It's an iPad 4")
            case .iPadAir:       print("It's an iPad Air")
            case .iPadAir2:      print("It's an iPad Air 2")
            case .iPadMini:      print("It's an iPad Mini")
            case .iPadMini2:     print("It's an iPad Mini 2")
            case .iPadMini3:     print("It's an iPad Mini 3")
            case .iPadMini4:     print("It's an iPad Mini 4")
            case .iPadPro:       print("It's an iPad Pro")
            
            /*** iPod ***/
            case .iPodTouch1Gen: print("It's a iPod touch generation 1")
            case .iPodTouch2Gen: print("It's a iPod touch generation 2")
            case .iPodTouch3Gen: print("It's a iPod touch generation 3")
            case .iPodTouch4Gen: print("It's a iPod touch generation 4")
            case .iPodTouch5Gen: print("It's a iPod touch generation 5")
            case .iPodTouch6Gen: print("It's a iPod touch generation 6")
            
            /*** Simulator ***/
            case .Simulator:    print("It's a Simulator")
            
            /*** Unknown ***/
            default:            print("It's an unknown device")
        }
    }

func myFucn() {
        /*** Display the device screen size ***/
        switch Device.size() {
            case .Screen3_5Inch: print("It's a 3.5 inch screen")
            case .Screen4Inch:   print("It's a 4 inch screen")
            case .Screen4_7Inch: print("It's a 4.7 inch screen")
            case .Screen5_5Inch: print("It's a 5.5 inch screen")
            default:             print("Unknown size")
        }
}