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