Merge pull request kodecocodes#529 from remlostime/link-list-swift

[Swift 4] Update Linked List

Author: kelvinlauKL

Linked List/LinkedList.playground/Contents.swift

@@ -3,6 +3,11 @@
 // For best results, don't forget to select "Show Rendered Markup" from XCode's "Editor" menu
 
 //: Linked List Class Declaration:
+// last checked with Xcode 9.0b4
+#if swift(>=4.0)
+print("Hello, Swift 4!")
+#endif
+
 public final class LinkedList<T> {
 
   /// Linked List's Node Class Declaration

Linked List/Tests/LinkedListTests.swift

@@ -11,6 +11,13 @@ class LinkedListTest: XCTestCase {
     return list
   }
 
+  func testSwift4() {
+    // last checked with Xcode 9.0b4
+    #if swift(>=4.0)
+      print("Hello, Swift 4!")
+    #endif
+  }
+
   func testEmptyList() {
     let list = LinkedList<Int>()
     XCTAssertTrue(list.isEmpty)

Linked List/Tests/Tests.xcodeproj/project.pbxproj

@@ -221,7 +221,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks @loader_path/../Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = swift.algorithm.club.Tests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Debug;
 		};
@@ -233,7 +233,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks @loader_path/../Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = swift.algorithm.club.Tests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Release;
 		};