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