Swift Array Remove Matching

Swift Array Remove Matching.swift

extension Array {

    /*
     * Similiar to filter, but removes the results that match
     * in addition to returning them
     */
    mutating func removeMatching(removeElement: T -> Bool) -> [T] {
        var removed = [T]()

        for index in stride(from: self.endIndex-1, through: 0, by: -1) {
            let element = self[index]
            if removeElement(element) {
                removeAtIndex(index)
                removed.append(element)
            }
        }
        return removed
    }
}

var all = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
let odd = all.removeMatching({ x in x % 2 != 0 })
// all == [2, 4, 6, 8, 10]
// odd == [1, 3, 5, 7, 9]