expression pattern of type 'CountableClosedRange' cannot match values of type 'Int'?

Question

At one point before Swift 3 this code would work without any compile errors however after converting to Swift 3 this code isn't compiling and I don't completely understand how the value types are different. The error given is `expression pattern of type 'CountableClosedRange<Int>' cannot match values of type 'Int'` for the switch cases where I'm attempting to use different ranges of values in the switch statement: ``` switch hour { case 0 ... 11: greetingStatement.text = "Good Morning" case 12 ... 24: greetingStatement.text = "Good Evening" default: greetingStatement.text = "Hello" } ``` Here is the full code: ``` import UIKit class ViewController: UIViewController { @IBOutlet weak var userInput: UITextField! @IBOutlet weak var usertOutput: UILabel! @IBOutlet weak var tapMeAfterEnteringYourName: UIButton! @IBOutlet weak var greetingStatement: UILabel! @IBOutlet weak var letsGetStartedLabel: UILabel! @IBOutlet weak var ballonsImageView: UIImageView! @IBOutlet weak var teacherPointingTo…

Accepted Answer

The error is misleading. The problem is that `hour` is an optional `Int`.

I would change the code to:

```
if let hour = components.hour {
    switch hour {
    case 0 ... 11:
        greetingStatement.text = "Good Morning"
    case 12 ... 24:
        greetingStatement.text = "Good Evening"
    default:
        greetingStatement.text = "Hello"
    }
}
```

expression pattern of type 'CountableClosedRange<Int>' cannot match values of type 'Int'?

Solution

Problem