Re: doubly linked list

[Peter Hancock]

>>>>> "Jan" == Jan Kort <[EMAIL PROTECTED]> writes:

    > Anyway, a doubly linked list could be defined like this:

That was very interesting.  It seems to generalise to put
back-pointers and other context info in a variety of data
structures. This seems a pretty performance-enhancing thing to do.

It is reminiscent of Richard Bird's paper on cyclic structures.

Peter