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airspeedswift / shuffle.swift
Last active Feb 2, 2018 — forked from natecook1000/shuffle.swift
Fisher-Yates shuffle as protocol extension on any random-access collection
View shuffle.swift
// adapted from original, which was (c) 2015 Nate Cook, licensed under the MIT license
// Fisher-Yates shuffle as protocol extensions
import Darwin
extension CollectionType where Index: RandomAccessIndexType {
/// Return a copy of `self` with its elements shuffled
func shuffle() -> [Generator.Element] {
var list = Array(self)
View Measure.swift
func measure(title: String?, call: () -> Void) {
let startTime = CACurrentMediaTime()
let endTime = CACurrentMediaTime()
if let title = title {
print("\(title): ")
println("Time - \(endTime - startTime)")
View gist:6c7051b427fa60534c41
import KeychainAPI
let keychain: Keychain = Keychain(service: "com.secondgear.myapp", accessibility: Accessibility.WhenUnlocked)
let userAccount = Account(userName: "", secret: "lovesecretsexgod")
if let fetchedAccount = keychain.accountFor("")
fetchedAccount.secret = "newpassword"
View Swift Generic Functions
func sortedSet<S: RangeReplaceableCollectionType where S.Generator.Element: Comparable>(seq:S, obj:S)-> [S.Generator.Element] {
let s = reduce(seq, obj){
ac, x in contains(ac,x) ? ac : ac + [x]
let set = sorted(s){$0<$1}
return set
func insert<S:RangeReplaceableCollectionType, I: SignedIntegerType where I == S.Index.Distance, S.Generator.Element: Equatable>(inout seq:S, ins:S, ind:I) {
// use of abs() prevents a negative value causing the insertIndex to be before the startIndex
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