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