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