How to check for NSDecimalNumber.zero() in Swift

Question

Using 'num1' as a comparison reference to determine if 'num2' or 'num3' are zero. Have done this successfully in Objective-C, and am trying to do it in Swift:

let num1: NSDecimalNumber = NSDecimalNumber.zero()
let num2: NSDecimalNumber = NSDecimalNumber.decimalNumberWithString("0")
let num3: NSDecimalNumber = NSDecimalNumber.decimalNumberWithString("0.000001")

if num1.compare(num2) == NSOrderedSame {
    println("They match")
}

This attempt results in: "error: use of unresolved identifier 'NSOrderedSame'." What is the proper way to accomplish this in Swift? (Have searched the book and web, but missing something possibly obvious, thank you).

Answer 1

Do you mean: num1.compare(num2) == NSComparisonResult.OrderedSame