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Re: SETF and Prolog
- To: Meehan@YALE.ARPA
- Subject: Re: SETF and Prolog
- From: LES@CMU-CS-C.ARPA
- Date: Wed 12 Oct 83 13:54:37-EDT
- Cc: common-lisp@SU-AI.ARPA
- In-reply-to: Message from "Jim Meehan <Meehan@YALE.ARPA>" of Wed 12 Oct 83 09:50:24-EDT
Assuming that x has the structure of a person, i.e. that you use a defstruct
to define what a person is, then the setf form for the grandfather field
is well defined. Something like:
(defstruct person (:conc-name nil ...)
.
.
(grandfather-of nil)
.
.
)
Will make the supplied setf form entirely valid.
-Lee
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