fix

JaapWijnen · JaapWijnen · commit 3fc54e61b6c7 · 2017-02-07T18:46:27.000+01:00
diff --git a/Threaded Binary Tree/ThreadedBinaryTree.playground/Sources/ThreadedBinaryTree.swift b/Threaded Binary Tree/ThreadedBinaryTree.playground/Sources/ThreadedBinaryTree.swift
@@ -120,7 +120,7 @@ extension ThreadedBinaryTree {
      
      Performance: runs in O(h) time, where h is the height of the tree.
      */
-    public func remove(_ value: T) -> ThreadedBinaryTree? {
+    @discardableResult public func remove(_ value: T) -> ThreadedBinaryTree? {
         return search(value)?.remove()
     }
     

Original file line number	Diff line number	Diff line change
`@@ -120,7 +120,7 @@ extension ThreadedBinaryTree {`
`120`	`120`
`121`	`121`	`Performance: runs in O(h) time, where h is the height of the tree.`
`122`	`122`	`*/`
`123`		`- public func remove(_ value: T) -> ThreadedBinaryTree? {`
	`123`	`+ @discardableResult public func remove(_ value: T) -> ThreadedBinaryTree? {`
`124`	`124`	`return search(value)?.remove()`
`125`	`125`	`}`
`126`	`126`