Add RD of queue using linked list

cpp/datastructs/queuelist/queuelist.h

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+/*#############################################################################
+## Author: Shaun Reed                                                        ##
+## Legal: All Content (c) 2020 Shaun Reed, all rights reserved               ##
+## About: An example of a queue implementation using linked lists            ##
+##                                                                           ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0  ##
+##############################################################################
+## queuelist.h
+*/
+
+#ifndef QUEUELIST_H
+#define QUEUELIST_H
+
+#include <iostream>
+
+class QueueList {
+  public:
+    QueueList() : head(NULL), tail(NULL){};
+    QueueList(const QueueList& rhs);
+    QueueList operator=(QueueList rhs);
+    ~QueueList();
+    bool enqueue(int val);
+    int dequeue();
+    int next() const;
+    bool isEmpty() const;
+    void print() const;
+    void makeEmpty();
+
+  private:
+    struct Node {
+      int data;
+      Node *next;
+      Node(): data(), next(NULL) {};
+      Node(int val): data(val), next(NULL) {};
+    };
+    Node *head, *tail;
+    bool enqueue(int val, Node *&head);
+    int dequeue(Node *&tail);
+    void print(Node *start) const;
+    void makeEmpty(Node *&head);
+    
+};
+
+#endif