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