text: //
  //  builder.hpp
  //  design-pattern
  //
  //  Created by nelson lin on 8/20/18.
  //  Copyright © 2018 nelson lin. All rights reserved.
  //
  
  #ifndef builder_hpp
  #define builder_hpp
  
  #include <stdio.h>
  #include <gtest/gtest.h>
  #endif /* builder_hpp */
  