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