[racket-users] Error message from GUI

Hello, Running my GUI app from Racket 6.6, I see the following error message in the console: initialization for bitmap%: bad argument combination: 486 0 #f #t 1.0 It happens on 64-bit Windows 7 and 10, and does not happen on 32-bit Windows XP and 64-bit Linux. It also did not happen on

[racket-users] [ANN] Mock, a test mocking library

I've written a library for making test mocks, so that tests can verify they're correctly calling dependencies without really calling them (for example, to avoid IO in unit tests). It's available in the package catalog under the name "mock", and a separate package with RackUnit checks for mocks

Re: [racket-users] racket command-line REPL: Constructor style printing mode?

Cool, I've updated the package, and it works great now! Thanks again, Delphine -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to

Re: [racket-users] racket command-line REPL: Constructor style printing mode?

> On Jul 28, 2016, at 12:32 PM, Delphine Demange > wrote: > > >> I have just added `constructor-style-print/racket/init` to the `quote-bad` >> package so that you can do this: >> >> $ racket -I constructor-style-print/racket/init >> [...] >> What it does is

Re: [racket-users] racket command-line REPL: Constructor style printing mode?

> I have just added `constructor-style-print/racket/init` to the `quote-bad` > package so that you can do this: > > > $ racket -I constructor-style-print/racket/init > [...] > What it does is require `racket/init` and > `constructor-style-print/lang/runtime-config`, and then call the

Re: [racket-users] DrRacket 6.5 + OS X El Capitan = slow execution

Here's another experiment to try: 1) start DrRacket from the command-line, like this: $ env PLTDRBREAK=1 /Applications/Racket\ v6.5/bin/drracket You should see a small new window appears with two buttons, "Break Main Thread" and "Break All Threads". Hit Run and wait about half of the time

Re: [racket-users] DrRacket 6.5 + OS X El Capitan = slow execution

Thanks. I'm not seeing anything out of the ordinary there. Rats. Robby On Thu, Jul 28, 2016 at 1:40 AM, Ivan Kuzmin wrote: > Here are the results! > > https://gist.github.com/inkuzmin/d5ae6b1287171ae3823fd715fa2e8e0e > > -- > You received this message because you are

Re: [racket-users] DrRacket 6.5 + OS X El Capitan = slow execution

Sorry for the redundancy in paste, it seems like all the results are the same but I have copied all five outputs, for the sake of specification. > Here are the results! -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this

Re: [racket-users] DrRacket 6.5 + OS X El Capitan = slow execution

Here are the results! https://gist.github.com/inkuzmin/d5ae6b1287171ae3823fd715fa2e8e0e -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to

Re: [racket-users] DrRacket 6.5 + OS X El Capitan = slow execution

Alex, hello! Thank you for your reply. No, we are just using Beginning Student Language in HTDP course. Apart from my bug report, there are two other similar reports on our forums. But I don't know how persistent the problem is. On the one side if we are the only students that observe that