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