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