49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
/*#############################################################################
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## Author: Shaun Reed ##
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## Legal: All Content (c) 2020 Shaun Reed, all rights reserved ##
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## About: An example of a circular doubly linked list ##
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## ##
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## Contact: shaunrd0@gmail.com | URL: www.shaunreed.com | GitHub: shaunrd0 ##
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##############################################################################
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## circledoublelist.h
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*/
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#ifndef CIRCLEDOUBLELIST_H
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#define CIRCLEDOUBLELIST_H
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#include <iostream>
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class CircleDoubleList {
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public:
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CircleDoubleList() : tail(NULL) {};
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CircleDoubleList(const CircleDoubleList& rhs);
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CircleDoubleList operator=(CircleDoubleList rhs);
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~CircleDoubleList();
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bool insert(int val);
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bool insert(int val, int key);
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bool remove(int val);
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bool replace(int val, int key);
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void makeEmpty();
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bool isEmpty() const;
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int peek() const;
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void print() const;
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bool find(int val) const;
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private:
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struct Node {
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int data;
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Node *next, *prev;
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Node(): data(), next(NULL), prev(NULL) {};
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Node(int val): data(val), next(this), prev(this) {};
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};
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Node *tail;
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bool insert(int val, Node *&tail);
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bool insert(int val, int key, Node *&tail);
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bool remove(int val, Node *&tail);
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bool replace(int val, int key, Node *&tail);
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Node* find(int val, Node *start) const;
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void print(Node *start) const;
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};
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#endif
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