WITH-GUARD-CHECKING
suppressing or enable guard-checking for a form
Major Section: SWITCHES-PARAMETERS-AND-MODES
Example:
; Turn off all guard-checking for the indicated calls of append and car:
(with-guard-checking :none
(car (append 3 4)))
General Form:
(with-guard-checking val form)
where val evaluates to a legal guard-checking value
(see set-guard-checking, or evaluate *guard-checking-values* to see the
list of such values), and form is a form to be evaluated as though we had
first executed (set-guard-checking val). Of course, this gaurd-checking
setting is active only during evaluation of form, and is ignored once
evaluation passes into raw Lisp functions (see guards-and-evaluation).