_CONTAINER OBJECT TYPES IN TURBO PASCAL_
by Anders Hejlsberg
[LISTING ONE]
unit Contain;
{$S-}
interface
type
{ Base object type }
Base = object
destructor Done; virtual;
end;
{ Abstract linked list node type }
ListNodePtr = ^ListNode;
ListNode = object(Base)
Next: ListNodePtr;
function Prev: ListNodePtr;
...
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