Xcode 8.0 / beta6 code updates..

- minor changes to cast initializers, infix operators and inout parameter declaration.
- continued work quicksort algorithm unit tests.

Example/AppDelegate.swift

@@ -14,7 +14,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
     var window: UIWindow?
 
 
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
+    private func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
         // Override point for customization after application launch.
         return true
     }

Source/Extensions/Array.swift

@@ -52,7 +52,8 @@ extension Array where Element: Comparable {
         //evaluate chosen number..
         let n = self[mid]
 
-        print(String(n) + " value attempted..")
+
+        print(String(describing: n) + "value attempted..")
 
 
         if n > key {
@@ -256,13 +257,10 @@ extension Array where Element: Comparable {
 
     /*
      quicksort algorithm - Ranks numbers through a series of swaps.
-     Based on "conceptually" partioning a series through the application of a "wall" and "pivot".
+     Based on "conceptually" sorting a collection subset based on a "wall" and "pivot".
      Best case performance of O(n log(n)). Worst case performance of O(n2).
      */
 
-
-
-    //determines sorting range - performance: O(n log(n))
     mutating func quickSort() -> Array<Element> {
 
 
@@ -283,7 +281,7 @@ extension Array where Element: Comparable {
 
 
 
-    //sorts collection range based on pivot
+    //sorts collection-range based on pivot
     mutating func qPartition(start startIndex: Int, _ pivot: Int) -> Int {
 
         var wallIndex: Int = startIndex

Source/Factories/Graph.swift

@@ -308,7 +308,7 @@ public class SwiftGraph {
 
 
     //bfs traversal with inout closure function
-    func traverse(_ startingv: Vertex, formula: (inout node: Vertex) -> ()) {
+    func traverse(_ startingv: Vertex, formula: (_ node: inout Vertex) -> ()) {
 
 
         //establish a new queue
@@ -340,7 +340,7 @@ public class SwiftGraph {
             */
 
             //invoke formula
-            formula(node: &vitem)
+            formula(&vitem)
 
 
         } //end while

Source/Factories/HashList.swift

@@ -142,13 +142,13 @@ class HashList<T> {
 
         //string type
         case is String:
-            return String(element)
+            return String(describing: element)
 
 
 
         //int type
         case is Int:
-            let stringElement = String(element)
+            let stringElement = String(describing: element)
             return stringElement
 
 

Source/Structures/AVLTree.swift

@@ -50,7 +50,7 @@ public class AVLTree<T: Comparable> {
 
 
         //check left side
-        if key < self.key {
+        if key < self.key! {
 
 
             if self.left != nil {
@@ -78,7 +78,7 @@ public class AVLTree<T: Comparable> {
 
 
         //check right side
-        if key > self.key {
+        if key > self.key! {
 
 
             if self.right != nil {

SwiftStructures.xcodeproj/xcuserdata/waynebishop.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist

@@ -2,4 +2,22 @@
 <Bucket
    type = "1"
    version = "2.0">
+   <Breakpoints>
+      <BreakpointProxy
+         BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
+         <BreakpointContent
+            shouldBeEnabled = "No"
+            ignoreCount = "0"
+            continueAfterRunningActions = "No"
+            filePath = "SwiftTests/QuickTest.swift"
+            timestampString = "494093734.019686"
+            startingColumnNumber = "9223372036854775807"
+            endingColumnNumber = "9223372036854775807"
+            startingLineNumber = "45"
+            endingLineNumber = "45"
+            landmarkName = "testDecendingQSort()"
+            landmarkType = "7">
+         </BreakpointContent>
+      </BreakpointProxy>
+   </Breakpoints>
 </Bucket>

SwiftTests/ClosureTest.swift

@@ -12,26 +12,6 @@ import XCTest
 @testable import SwiftStructures
 
 
-//MARK:  custom operator
-
-
-/* 
-notes: infix class operator to represent exponent operation
-single carat symbol reserved for XOR bit manipulation
-*/
-
-
-infix operator ^^ {}
-
-func ^^(base: Int, power: Int) -> Int {
-
-    //rounded to nearest int
-    let results: Double = round(pow(Double(base), Double(power)))
-    return Int(results)
-}
-
-
-
 class ClosureTest: XCTestCase {
 
     var numberList: Array<Int>!

SwiftTests/LinkedTest.swift

@@ -14,14 +14,13 @@ import XCTest
 
 //struct for testing indicies
 struct keyIndex {
-    private var key: Int
-    private var index: Int
+    public var key: Int
+    public var index: Int
 }
 
 
 
 class LinkedTest: XCTestCase {
-
 
     var numberList : Array<Int>!
 

SwiftTests/QuickTest.swift

@@ -34,7 +34,7 @@ class QuickTest: XCTestCase, Sortable {
 
 
         //evaluate results
-        buildQuickResults(with: results)
+        processQuickResults(with: results)
     }
 
 
@@ -47,7 +47,7 @@ class QuickTest: XCTestCase, Sortable {
 
 
         //evaluate results
-        buildQuickResults(with: results)
+        processQuickResults(with: results)
 
     }
 
@@ -56,10 +56,9 @@ class QuickTest: XCTestCase, Sortable {
 
     //MARK: Helper function
 
-    func buildQuickResults(with sequence: Array<Int>) {
-
+    func processQuickResults(with sequence: Array<Int>) {
         print("quick sort results: \(sequence)")
-        XCTAssertTrue(isSorted(sequence), "test failed: sequence not sorted: " + String(sequence))
+        XCTAssertTrue(isSorted(sequence), "test failed: sequence not sorted: " + String(describing: sequence))
     }
 
 }