Re: garbage collection thoughts... again?!

[Enrico Colombini <erix@...>]

On Thursday 29 May 2003 19:07, Thatcher Ulrich wrote:
> * use a weak pointer when you don't "own" the other object.  E.g. a
>   child node would have a weak pointer to its parent.  This requires
>   some awareness on the part of the programmer of when to use a weak
>   pointer, but at least is safe.

How do you apply this principle to a doubly-linked list, that could be kept in 
existance by a single reference to an unpredictable item (e.g. a reference 
either to the head or to the tail)?

By the way, how does Python fare with doubly-linked lists?

  Enrico