Modifying constructor for member structures.
(change-member x [:name <name>] [:value <value>])
This is an often useful alternative to make-member.
We construct a new member structure that is a copy of
This is an ordinary
Macro:
(defmacro change-member (x &rest args) (std::change-aggregate 'member x args '((:name . member->name) (:value . member->value)) 'change-member 'nil))