Modifying constructor for pos-option-none structures.
(change-pos-option-none x )
This is an often useful alternative to make-pos-option-none.
We construct a new pos-option-none structure that is a copy of
This is an ordinary
Macro:
(defmacro change-pos-option-none (x &rest args) (std::change-aggregate 'pos-option-none x args 'nil 'change-pos-option-none 'nil))