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root/ccscs20/DoublyLinkedList.hpp
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Comparing DoublyLinkedList.hpp (file contents):
Revision 7 by Douglas Thrift, 2004-05-14T00:13:01-07:00 vs.
Revision 10 by Douglas Thrift, 2004-05-14T13:57:49-07:00

# Line 18 | Line 18 | private:
18          NullNode<Type> back;
19   public:
20          DoublyLinkedList() { front.setNext(&back); back.setPrevious(&front); }
21 <        ~DoublyLinkedList();
21 >        ~DoublyLinkedList() { while (front.getNext() != &back) front.removeNext(); }
22          void addFront(const Type& value) { front.addNext(value); }
23          void addBack(const Type& value) { back.addPrevious(value); }
24          bool contains(const Type& value) { return front.contains(value, &back); }
25          void removeFirst(const Type& value) { front.remove(value, &back); }
26          void removeLast(const Type& value) { back.remove(value, &front, false); }
27          Iterator<Type> iterator(void) { return Iterator<Type>(&front, &back); }
28 +        void accept(Visitor<Type>* visitor) { front.accept(visitor, &back); }
29   };
30  
30 template<typename Type>
31 DoublyLinkedList<Type>::~DoublyLinkedList()
32 {
33        while (front.getNext() != &back) front.removeNext();
34 }
35
31   #endif // _DoublyLinkedList_hpp_

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