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