//---------------------------------------------------------------------------
#ifndef FileListH
#define FileListH
//---------------------------------------------------------------------------
#include "BinaryFile.h"
template <class LRecord>
class FileList
{ public:
    // constructor
    FileList(){}

    // destructor
    ~FileList(){}

    // list operations
    void Open(AnsiString FileName); // open if existing file, create otherwise
    void Close();
    void Insert(LRecord Item); // insert record in order
    void Search(LRecord &SearchItem); // find first record that is at or after SearchItem
    void GetCurrent(LRecord &Item);  // read current record
    void GetNext(LRecord &Item); // read next record
    void GetFirst(LRecord &Item); // read first record
    void Delete(); // delete current record
    void ModifyCurrent(LRecord &Item); //rewrite current record
    bool AtEnd(); // true if current is last record in list.
    void Pack();  // rewrites list with list order in order.
  private:
    int Previous, Current;
    struct ListInfo {
      int Head, DeleteList;
      };

    struct ListNode {
      LRecord item;
      int Next;
      };

    BinaryFile<ListInfo, ListNode> BF;

};
#include "FileList.cpp"
#endif