#racket on 2019-07-10 — irc logs at freenode.irclog.whitequark.org

2019-05-22 02:51 samth changed the topic of #racket to: Racket v7.3 has been released: https://blog.racket-lang.org/2019/05/racket-v7-3.html -- Racket -- https://racket-lang.org -- https://pkgs.racket-lang.org -- Paste at http://pasterack.org

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13:27 <_andre> winny: thanks, but that seems to flush the port's internal buffers, but doesn't seem to call fsync, i.e. the data may still be in an OS cache and not persisted on disk

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16:57 <technomancy> wow, weather in utah looks brutal this weekend. how are yall surviving at racket week? =)

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17:11 <greghendershott> technomancy: Yeah I saw that and asked on Slack yesterday. Apparently it is "desert 100F". No humidity.

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17:12 <greghendershott> More like Vegas than Thailand? :)

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17:14 <technomancy> youch

17:14 <technomancy> well, I guess we'll be indoors most of the time

17:15 <greghendershott> Oh I think folks were saying, don't worry, it's not like 100 or even 90 in a humid area. Not so bad.

17:15 <technomancy> ah, gotcha

17:15 <greghendershott> But maybe think about moisturizing sun block and staying well hydrated. :)

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17:42 <endformationage> Might anyone know if there are solutions to the lab exercises for Racket school's How to Design Languages track?

17:44 <endformationage> Mostly I'm trying to figure out how to use `(provide (contract-out ...` inside a macro [section 4 lab, exercise 1]

17:45 <endformationage> https://school.racket-lang.org/2019/plan/mon-aft-lab.html

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18:44 <erkin> endformationage: It's asking you to rewrite define/contract.

18:45 <erkin> Actual implementation of define/contract is pretty convoluted but you don't need to go into too much detail. You can write a simple macro based on what define/contract already does.

18:51 <samth> greghendershott: technomancy: i was just in phoenix where it was similarly hot, and I live in Indiana where it's been 90 and humid recently, and 100 was very different

18:51 <samth> I was very happy to return to normal-hot and humid

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19:29 <greghendershott> If only I'd known in time, I could have ordered a bunch of these with Racket logos and water bottles. https://www.amazon.com/Novelty-Place-Guzzler-Drinking-Helmet/dp/B01KHOQ26Y

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21:05 <endformationage> erkin: Thanks for taking a look. Considering the idiomatic code sample, I think the exercise is asking to implement the more lax pattern of a contract enforced at the module boundary, thus define/contract is too strict.

21:07 <endformationage> My misguided attempt at using `provide` inside the returned syntax results in a "provide: not at module level" error.

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