Could not cast value of type 'Swift.UInt32' to 'Swift.Int'

Question

In Tests project I've got extensions with some test helper functions. Like this: ``` extension Employee { static func mockDict() -> Dictionary<String, Any>! { return ["ID": arc4random() % 1000, "FirstName": "Employee First Name", ...] } } ``` (I've stripped unnecessary code). I've got problem accessing ID from this dictionary for some yet unknown reason. I've got SIGABRT 6 when casting ``` employeeDict["ID"] as! Int ``` Xcode debugger console also don't like this particular integer: Strings work fine. Have you encountered such problem? Any ideas? EDIT: Just in case anyone will encounter this problem too. CASTING FROM UInt32/Int32 TO Int FAILS BY DESIGN. Even if object was casted into `Any` or `Anyobject` inbetween. Even though ``` @available(*, message: "Converting UInt32 to Int will always succeed.") public init?(exactly value: UInt32) ``` in Int's declaration ``` public struct Int : SignedInteger, Comparable, Equatable { ... } ``` and ``` public struct Int32 : SignedInteger, Compara…

Accepted Answer

Try this:

```
let a = employeeDict["ID"] as! UInt32
let number = Int(a)
```

Now you can use `number` to perform any action.

Could not cast value of type 'Swift.UInt32' to 'Swift.Int'

Solution

Problem