A new version of these benchmarks was just published ("Round 19"):
https://www.techempower.com/benchmarks/#section=data-r19
Racket scores rather poorly (0 errors is nice, though). Anybody has any
guesses as to why this is? Racket performs well enough as far as I'm
concerned, and while I don't u
> I am thinking its deeper because the code sometimes compiles.
>
Yes, this happens with me too. I haven't tried it using raco but in
DrRacket, while I
was fiddling around with these classes, it would sometimes fail to compile,
but
I just used to erase what I wrote, and then re-write, and it
stance of a class).
>
> If you need a workaround to keep using the released version of Racket
> CS, it may involve supplying explicit equality and hash-code functions
> for your `Equal%` class.
>
> Thanks for the report!
>
> At Thu, 5 Mar 2020 04:07:48 -0800 (PST), hashim muq
Hello,
I have some code that uses my library, "remap". It previously used to work,
but in Racket CS 7.6, it fails saying "invalid memory reference. Some
debugging context lost".
Clicking the crosses in DrRacket gives this backtrace:
invalid memory reference. Some debugging context lost
/home
So I have this file, found here:
https://gitlab.com/hashimmm/remap/-/blob/3682db9fff3bc5007833e07bf9a9ed6e8e0170a9/private/tables.rkt
Lines 51 through 55 say:
(define-type (Func<%> A) (BaseFunc<%> A FuncAnyParam))(define-type BoolFunc<%>
(Func<%> BooleanColumn))(define-type AnyFunc<%> (Func<%>
> I am trying to make good use of Generic Interfaces, but can't figure out
if its at all possible to delegate calls up the struct inheritance chain.
So, something like `call-next`
If I understand you correctly, "define/generic" let you do this. See
https://docs.racket-lang.org/reference/struct-
> as what I was trying to do was produce a typed version of Greg
Hendershott's "keyword structs" (
https://www.greghendershott.com/2015/07/keyword-structs-revisited.html )
Sorry, I pointed to the wrong thing. The procedure I was re-implementing
was hash->struct/kw from
https://github.com/dstor
I found this topic when searching around for something about keyword-apply
and typed racket, as what I was trying to do was produce a typed version of
Greg Hendershott's "keyword structs"
(https://www.greghendershott.com/2015/07/keyword-structs-revisited.html )
and I was getting an error saying
> The issue you're encountering with namespaces is analogous, because each
namespace gets its own instances of modules. This is a feature! Imagine,
for example, that you are trying to run students' programs in a sandbox. If
namespaces shared module instances, a malicious or buggy student progra
> Good news, limit and distinct are in scope for v0.2 - I'm working on it
now :)
That's good to hear, thanks! I'll be sure to check it out, and let you know
if I have any ideas/requirements for features or if I can contribute.
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> No. Look back at your code ... you defined the struct in your own
> unnamed module just before the definition of "select/f"
But the thing is, the error was that it failed to recognize sql-statement
in the test, which is provided by sql, not me. The function otherwise
worked correctly. The
> If order to use a struct across namespaces, the module that
> defines the struct must be required into each namespace that uses the
> struct.
Yes, I suspect there's some weird interaction between namespaces too, hence
the topic, but that's still pretty vague. After all, the thing defining th
Hello,
The test in my following code raises an error saying that when I call
select/f, the result doesn't satisfy `sql-statement?`.
I've no idea why, the only vague idea I have is that it may have something
to do with the fact that it was essentially eval'd in a separate namespace.
Any ideas?
Hello,
The example in the documentation for using #:result with for/fold, here:
https://docs.racket-lang.org/reference/for.html?q=for%2Ffold#%28form._%28%28lib._racket%2Fprivate%2Fbase..rkt%29._for%2Ffold%29%29
works in normal racket, but not typed racket.
I suppose that isn't really a bug, but
I've found monit to work alongside systemd services pretty neatly. As in, I
have monit monitoring my web server, which is running using systemd, and
monit sends me emails if it's not working or something.
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I have the same problem on Fedora 27, Racket 6.11. I don't recall the last
time I tried changing fonts so I'm not sure when it happened. I do
distinctly remember font selection used to work once upon a time. And the
same workaround works for me, too. As in, if I just use the scroll wheel on
tha
gt; > Sorry, ignore my post.
> > Jos Koot
> >
> > -Original Message-
> > From: Jos Koot [mailto:jos.k...@gmail.com]
> > Sent: domingo, 27 de agosto de 2017 19:00
> > To: 'hashim muqtadir'; 'Racket Users'
> > Subject: RE: [racket-user
Hello,
I recently updated to Racket 6.10 and I cannot seem to find the blue boxes in
the top right of the definitions and interactions windows anymore. They don't
show up by pressing the hotkey (f2) either. There's no error or anything, just
nothing happens. External help works, i.e. pressing f1
Thanks!
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Thanks, everyone, good to know that not only will we be getting the videos soon
but that we have a new #lang for them as well. Maybe next RacketCon Leif will
be giving a talk on #lang video :)
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To
The videos for the live streams are available on youtube but they aren't as
clear audio/video-wise as the individual talks videos are for older RacketCons
are. The website does say they will be made available; I just hope that plan
did not get scrapped, did it?
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I seem to be facing a different issue though it fits into the same topic; i.e.
the example mentioned in the docs does not work for me.
Anyway when I try to run the example, I get the following output:
$ racket -l mode-lambda/examples/one
You can press these keys:
r - show random sprites,
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