82 lines
1.5 KiB
C
82 lines
1.5 KiB
C
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/* ---------------------------------------------------------------------------
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Nullsoft Database Engine
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--------------------
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codename: Near Death Experience
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--------------------------------------------------------------------------- */
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/* ---------------------------------------------------------------------------
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Double-Linked List Class Prototypes
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--------------------------------------------------------------------------- */
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#ifndef __LINKEDLIST_H
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#define __LINKEDLIST_H
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class LinkedListEntry
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{
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public:
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LinkedListEntry *Next;
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LinkedListEntry *Previous;
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public:
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LinkedListEntry *GetNext() const;
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LinkedListEntry *GetPrevious() const;
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LinkedListEntry();
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virtual ~LinkedListEntry();
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};
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template <class T> class VListEntry : public LinkedListEntry
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{
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public:
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void SetVal(T val)
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{
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Val = val;
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}
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T GetVal(void)
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{
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return Val;
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}
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private:
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T Val;
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};
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template <class T> class PListEntry : public LinkedListEntry
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{
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public:
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void SetVal(T *val)
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{
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Val = val;
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}
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T *GetVal(void)
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{
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return Val;
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}
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private:
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T *Val;
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};
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typedef bool (*WalkListProc)(LinkedListEntry *Entry, int, void*, void*);
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class LinkedList
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{
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protected:
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int NElements;
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LinkedListEntry *Head;
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LinkedListEntry *Foot;
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public:
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LinkedList();
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~LinkedList();
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void AddEntry(LinkedListEntry *Entry, bool Cat);
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void RemoveEntry(LinkedListEntry *Entry);
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void WalkList(WalkListProc WalkProc, int ID, void *Data1, void *Data2);
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int GetNElements(void) { return NElements; }
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LinkedListEntry *GetHead(void) { return Head; }
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LinkedListEntry *GetFoot(void) { return Foot; }
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};
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#endif
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