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