original commit: de8c1c6e98706b3818e0ce3309f8692db14a20f9
This commit is contained in:
Matthew Flatt 2001-10-25 00:11:31 +00:00
parent 8b3ec6929c
commit 193f365beb

View File

@ -5690,7 +5690,7 @@
[else (constructor-name (cadr who))]))
(define (label-string? s)
(and (string? s) #t)) ; (<= 0 (string-length s) 200)))
(and (string? s) (<= 0 (string-length s) 200)))
(define (check-instance who class class-name false-ok? v)
(unless (or (and false-ok? (not v)) (is-a? v class))