[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: SETF and Prolog



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
-------