Method in Swift for extracting the digits from an integer. (Negative integers not supported.)

IntDigits.swift

extension Int {

	/// Returns the digits of the number in the given base.
	/// The array of digits is ordered from most to least significant.
	func digits(base: Int = 10) -> [Int] {
		if self < base {
			return [self]
		}
		var n = self
		var d: [Int] = []
		while n > 0 {
			d.insert(n % base, atIndex: 0)
			n /= base
		}
		return d
	}

}