Marks in swift file

Author: BenEmdon

Rootish Array Stack/RootishArrayStack.swift

@@ -1,18 +1,24 @@
 //
-//  main.swift
 //  RootishArrayStack
 //
-//  Created by Benjamin Emdon on 2016-11-07.
+//  Created by @BenEmdon on 2016-11-07.
 //
 
 import Darwin
 
 public struct RootishArrayStack<T> {
+
+	// MARK: - Instance variables
+
 	fileprivate var blocks = [Array<T?>]()
 	fileprivate var internalCount = 0
 
+	// MARK: - Init
+
 	public init() { }
 
+	// MARK: - Calculated variables
+
 	var count: Int {
 		return internalCount
 	}
@@ -21,6 +27,8 @@ public struct RootishArrayStack<T> {
 		return blocks.count * (blocks.count + 1) / 2
 	}
 
+	// MARK: - Equations
+
 	fileprivate func block(fromIndex index: Int) -> Int {
 		let block = Int(ceil((-3.0 + sqrt(9.0 + 8.0 * Double(index))) / 2))
 		return block
@@ -30,6 +38,8 @@ public struct RootishArrayStack<T> {
 		return index - block * (block + 1) / 2
 	}
 
+	// MARK: - Behavior
+
 	fileprivate mutating func growIfNeeded() {
 		if capacity - blocks.count < count + 1 {
 			let newArray = [T?](repeating: nil, count: blocks.count + 1)
@@ -89,20 +99,10 @@ public struct RootishArrayStack<T> {
 		shrinkIfNeeded()
 		return element
 	}
-
-	public var memoryDescription: String {
-		var description = "{\n"
-		for block in blocks {
-			description += "\t["
-			for rawElement in block {
-				description += "\(rawElement), "
-			}
-			description += "]\n"
-		}
-		return description + "}"
-	}
 }
 
+// MARK: - Struct to string
+
 extension RootishArrayStack: CustomStringConvertible {
 	public var description: String {
 		var s = "["
@@ -114,4 +114,16 @@ extension RootishArrayStack: CustomStringConvertible {
 		}
 		return s + "]"
 	}
+
+	public var memoryDescription: String {
+		var description = "{\n"
+		for block in blocks {
+			description += "\t["
+			for rawElement in block {
+				description += "\(rawElement), "
+			}
+			description += "]\n"
+		}
+		return description + "}"
+	}
 }