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