separates an Int into each digit (signs negatives)

Int Components

import Cocoa

extension Int {
	func expandNumber() -> [Int] {
		var input = self
		var signed = false
		if input < 0 {
			input *= -1
			signed = true
		}

		var rArray = [Int]()
		var power = 1
		var tResult = 0
		repeat {
			let pTen = Int(pow(10, Double(power)))
			tResult = input % pTen
			rArray.append(tResult)

			power += 1
		} while tResult != input

		for index in (1..<rArray.count).reversed() {
			rArray[index] -= rArray[index - 1]
		}

		if signed {
			rArray.append(1)
		} else {
			rArray.append(0)
		}

		return rArray.reversed()
	}
}

199.expandNumber()
100.expandNumber()
0.expandNumber()
562.expandNumber()
5280.expandNumber()
560.expandNumber()
(-532).expandNumber()
101.expandNumber()
10101.expandNumber()