practicalswift (Thomas J) practicalswift

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duplicates = multiple editions

	// Given array of 2-tuples, return two arrays
	func unzip<T, U>(array: [(T, U)]) -> ([T], [U]) {
	var t = Array<T>()
	var u = Array<U>()
	for (a, b) in array {
	t.append(a)
	u.append(b)
	}
	return (t, u)
	}

	// See: https://devforums.apple.com/message/1000934#1000934

	import Foundation

	// Logic

	operator prefix ¬ {}
	@prefix func ¬ (value: Bool) -> Bool {
	return !value
	}

	//
	// JAZMusician.h
	// JazzyApp
	//

	#import <Foundation/Foundation.h>

	/**
	JAZMusician models, you guessed it... Jazz Musicians!
	From Ellington to Marsalis, this class has you covered.

	struct MySet<KeyType : Hashable> : Sequence, ArrayLiteralConvertible
	{
	var dictionaryOfItems = Dictionary<KeyType,Bool>()
	typealias GeneratorType = MapSequenceGenerator<Dictionary<KeyType, Bool>.GeneratorType, KeyType>

	init() {}
	init(array: KeyType[]) {
	for item in array {
	self.dictionaryOfItems.updateValue(true, forKey: item)
	}


	import Swift

	struct SetGenerator<T : Hashable> : Generator {
	var dictGenerator : DictionaryGenerator<T, Void>

	init(_ d : Dictionary<T,Void>) {
	dictGenerator = d.generate()
	}

	//
	// Set
	//

	struct MySet<KeyType : Hashable> : Sequence
	{
	var dictionaryOfItems = Dictionary<KeyType,Bool>()

	init() {}
	init(array:Array<KeyType>) {