docs: raise-range-error: alt-lower-bound argument is optional

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Philip McGrath 2020-09-20 00:08:16 -04:00 committed by Matthew Flatt
parent 024cc90813
commit ad7fed1e95

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@ -237,7 +237,7 @@ using the error value conversion handler (see
@defproc[(raise-range-error [name symbol?] [type-description string?] [index-prefix string?]
[index exact-integer?] [in-value any/c]
[lower-bound exact-integer?] [upper-bound exact-integer?]
[alt-lower-bound (or/c #f exact-integer?)])
[alt-lower-bound (or/c #f exact-integer?) #f])
any]{
Creates an @racket[exn:fail:contract] value and @racket[raise]s it as