a form.
implementation-dependent.
The value of -
is the form that is currently being evaluated by
the Lisp read-eval-print loop.
(format t "~&Evaluating ~S~%" -)
▷ Evaluating (FORMAT T "~&Evaluating ~S~%" -)
→ NIL
Lisp read-eval-print loop.
+ (Function) (variable), * (Function) (variable), / (Function) (variable), Section 25.1.1 (Top level loop)