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Pascal/Delphi Source File  |  1998-04-08  |  168 b   |  11 lines
  1. unit Iter;
  2.  
  3. interface
  4. type TIter=class
  5.        function IsEnd:boolean;virtual;abstract;
  6.        procedure Next;virtual;abstract;
  7.      end;
  8. implementation
  9.  
  10. end.
  11.