chickadee » box » make-box-location

(make-box-location TYPE INITIAL-VALUE [IMMUTABLE? #f]) => BOXsyntax

Returns a boxed reference to a location of TYPE and INITIAL-VALUE.

The BOX is mutable unless the IMMUTABLE? argument is #t.

An attempt to mutate an immutable box will signal an exception.

Unavailable in EVALuated source.