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