text: //
  //  ViewController.h
  //  2_ProtocolDelegateExample
  //
  //  Created by tigi on 2018. 2. 12..
  //  Copyright © 2018년 tigi. All rights reserved.
  //
  
  // TEST LIST
  // 1. for testing a optional method on protocol
  // 2. for testing delegate pattern using the potocol
  // 3. for testing a delegate property (retain cycle issue) (check memory on MAKE_MEMORY_LEAK version)
  
  #import <UIKit/UIKit.h>
  
  @interface ViewController : UIViewController
  
  
  @end
  
  