Modified a member variable of QueueNode Class

developer0hye · developer0hye · commit 83625a13b125 · 2018-12-15T16:01:49.000+09:00
diff --git a/Queue/queue_impl.h b/Queue/queue_impl.h
@@ -15,7 +15,6 @@ class QueueNode
 private:
     T           data_;
     QueueNode*  next_;
-    QueueNode*  prev_;
 };
 
 template<class T>
