[racket-dev] differences in error reporting

AHA! You got it!

It happens in the tabs which have 'No debugging...' checked, and
doesn't happen otherwise.


2013/1/30, Robby Findler <robby at eecs.northwestern.edu>:
> What is the "custom" part of the language settings you have on?
>
> Robby
>
>
> On Tue, Jan 29, 2013 at 7:47 PM, Pierpaolo Bernardi
> <olopierpa at gmail.com>wrote:
>
>> Update 2: it does not depend on buffer content.
>>
>> I have 9 tab open in this DrRacket. In 5 of them happen the strange
>> message, in 4 of them it doesn't happen.
>>
>> I tried closing one in which it happened and then reopening the same
>> file in a new tab, and in the new tab it doesn't happen.
>>
>>
>> 2013/1/30, Robby Findler <robby at eecs.northwestern.edu>:
>> > I don't see that with this program:
>> >
>> > #lang racket
>> >
>> > (define (integer->roman n)
>> >   (cond ((not (integer? n))
>> >          (raise-argument-error 'integer->roman "integer?" n))
>> >         ((positive? n)
>> >          (apply string-append n))
>> >         ((negative? n)
>> >          (apply string-append "NEGATIVVS " 1))
>> >         (else
>> >          "NVLLA")))
>> >
>> > Welcome to DrRacket, version 5.3.2.3--2013-01-29(32529d89/d) [3m].
>> > Language: racket; memory limit: 128 MB.
>> >> (integer->roman 3.3)
>> > . . integer->roman: contract violation
>> >   expected: integer?
>> >   given: 3.3
>> >> (integer->roman 3.3)
>> > . . integer->roman: contract violation
>> >   expected: integer?
>> >   given: 3.3
>> >>
>> >
>> >
>> > On Tue, Jan 29, 2013 at 4:33 PM, Pierpaolo Bernardi
>> > <olopierpa at gmail.com>wrote:
>> >
>> >> If I use raise-argument-error in my functions, like this:
>> >>
>> >> (define (integer->roman n)
>> >>   (cond ((not (integer? n))
>> >>          (raise-argument-error 'integer->roman "integer?" n))
>> >>         ((positive? n)
>> >>          (apply string-append (positive-integer->roman n)))
>> >>         ((negative? n)
>> >>          (apply string-append "NEGATIVVS " (positive-integer->roman (-
>> >> n))))
>> >>         (else
>> >>          "NVLLA")))
>> >>
>> >> I get errors like this:
>> >>
>> >> Welcome to DrRacket, version 5.3.2.2--2013-01-26(88404f3/a) [3m].
>> >> Language: racket [custom].
>> >> > (integer->roman 3.3)
>> >> integer->roman: contract violation
>> >>   expected: integer?
>> >>   given: 3.3
>> >> > (integer->roman 3.3)
>> >> . . C:\Program
>> >> Files\Racket-Full-5.3.2.2\collects\racket\private\more-scheme.rkt:263:2:
>> >> integer->roman: contract violation
>> >>   expected: integer?
>> >>   given: 3.3
>> >>
>> >> That is, from the second time on I get the extraneous prefix.  Is this
>> >> expected?
>> >>
>> >> P.
>> >>
>> >>
>> >> _________________________
>> >>   Racket Developers list:
>> >>   http://lists.racket-lang.org/dev
>> >>
>> >>
>> >
>>
>> --
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>>
>

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