[racket-dev] Stumped!

From: Robby Findler (robby at eecs.northwestern.edu)
Date: Fri Feb 22 16:51:43 EST 2013

I think that the lack of information about tail calls can be particularly
pernicious in the presence of multiple value errors. It would be good to do
better, but I'm not sure how. The errortrace library contains what we
currently do so you'd want to experiment there if you have an idea.


On Fri, Feb 22, 2013 at 1:13 PM, Pierpaolo Bernardi <olopierpa at gmail.com>wrote:

> On Fri, Feb 22, 2013 at 4:40 PM, Ryan Culpepper <ryanc at ccs.neu.edu> wrote:
> > The line
> >
> >   (date-day quando)99
> >
> > looks pretty suspicious; with the 99 there, the first branch of the
> > enclosing 'if' expression returns 8 values but the second branch returns
> 7
> > values.
> Yes, that was the source of the error (a mistake due to me pressing
> the Num Lock key inadvertently).
> What had me stumped is that DrRacket gives no hint about the location
> of the error.  Not even the right file!
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