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