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Aucbvax.4892 fa.editor-p utzoo!decvax!ucbvax!editor-people Sun Nov 1 22:36:07 1981 Integrating Editors with Programming Languages >From EAK@MIT-MC Sun Nov 1 22:26:47 1981 To: ihnss!cbosg!cbosgd!mark at Berkeley

Other people have already replied to your message about data structures in lisp, but no one has made it clear that in the mit-origin dialects doing what you want is probably as simple as saying

(defstruct (node) left-child parent right-child)

and later (parent n) or (right-child n) or (setf (left-child n) x)

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