How can I convert Int32 to Int in Swift?

Question

It should be easy but I can only find the reverse conversion. How can I convert Int32 to Int in Swift? Unless the problem is different?

I have a value stored in Core Data and I want to return it as an Int.

Here is the code I am using, which does not work:

func myNumber () -> Int {     var myUnit:NSManagedObject     myUnit=self.getObject(“EntityName”) // This is working.      return Int(myUnit.valueForKey(“theNUMBER”)?.intValue!)  } 

Answer 1

Am I missing something or isn't this ridiculously easy?

let number1: Int32 = 10 let number2 = Int(number1) 

Answer 2

The error is your ? after valueForKey.

Int initializer doesnt accept optionals.

By doing myUnit.valueForKey(“theNUMBER”)?.intValue! gives you an optional value and the ! at the end doesnt help it.

Just replace with this:

return Int(myUnit.valueForKey(“theNUMBER”)!.intValue) 

But you could also do like this if you want it to be fail safe:

return myUnit.valueForKey(“theNUMBER”)?.integerValue ?? 0 

And to shorten you function you can do this:

func myNumber() -> Int {     let myUnit = self.getObject("EntityName") as! NSManagedObject      return myUnit.valueForKey("theNUMBER")?.integerValue ?? 0 }