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03:53 ASau: eli: could you enlighten me which branch should I check to get functional release without extra tweaks?
03:54 ASau: eli: trunk or some other?
03:54 ASau: eli: by the way, Racket doesn't pass tests on NetBSD again.
03:54 ASau: eli: though I didn't look further yet.
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11:33 eli: ASau: ping
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11:36 eli: dekuked: No problems, it's just that #lisp is mostly inhabited by CLers, and the kind of answer you'd get on that question is obvious there.  (CLers are a special breed.)
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11:37 eli: As for epoll, at the Racket level it's completely transparent.
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11:46 DGASAU: eli: pong
11:48 eli: DGASAU: The branch that is to be released is called `release' and is there only during releases; the branch that represents the last released version is `stable'.
11:48 DGASAU: Ah, alright.
11:48 DGASAU: Thus I need to move to another branch.
11:48 eli: And BTW, like I said before, the best way to avoid such problems is to find some *bsd machine for the build, which we still don't have.
11:49 DGASAU: Hm.
11:49 DGASAU: I'll see if I can arrange that.
11:50 eli: Making it practical can be difficult.
11:50 eli: So it's mostly if you know about some machine in some department or something like that.
11:51 DGASAU: I'll ask if anyone can help with accessible machine.
11:52 dekuked: eli: again, thanks for pointing that out
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11:53 dekuked: also I'd just like to say racket is amazing. I think whalesong in particular is friggin awesome. I really want to start working with it.
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11:54 asumu: dekuked: :)
11:55 dekuked: but just out of curiosity, how do most of you guys develop in racket? do you miss the debugging/introspection of cl? or does the unit test framework/other features I don't know more than make up for it?
11:55 dekuked: is it reasonable to assume that most people use geiser?
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11:59 asumu: dekuked: I mostly use DrRacket actually. That or vim/emacs.
12:03 offby1: dekuked: yeah, I only run into other geiser users occasionally
12:03 dekuked: drracket is that prolific? wow, I always assumed lisp people were mostly die hard emacs fans
12:04 dekuked: I guess I'll really look into drracket, I never really looked into it properly
12:07 asumu: dekuked: I like its online syntax analysis and macro debugger.
12:07 offby1: I never got into it, being a die-hard emacs fan :)
12:07 eli: dekuked: There is an interactive debugger in DrRacket, but it's not as popular, so there's not much demand for adding features.
12:07 asumu does wish it would use less memory
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12:12 eli: dekuked: BTW, geiser should fill most of your interactive development needs, you can ask jao about it...
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12:42 flying_rhino: what does folks here think about component based entities and how best can they be implemented in typed racket?
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12:47 offby1 stares blankly
12:47 offby1: a) I don't use typed racket much; b) I don't know what "component based entities" are.
12:47 offby1: Apart from those caveats, though, I'm happy to expound.
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12:57 flying_rhino: component based entities are the altenrative to OOP design. It is getting rather popular in game development circles and I think it is improvement over OOP, especially for complex projects. Instead of class instances, game objects are entities one can link components to. Data is often separated in code. It works a little like relational database, (only without actual database). For example,
12:57 flying_rhino: tank can consist of physical enity (containing its size, weight, and position), graphic entity (containing mesh and texture) and health entity (containing it's current health, maximum health and armor type). Each of those componets is stored in a table and are linked to single entity.
12:58 flying_rhino: * Data is often separated FROM code
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13:00 flying_rhino: you should google the whole thing it is pretty cool
13:04 flying_rhino: so what would be the best way to implement this thing here in typed racket?
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13:14 flying_rhino: I am also wondering are component based entities better suited for functional programing?
13:16 offby1: "the" alternative?
13:17 offby1: obviously I have no idea how to implement that in typed racket :)
13:17 flying_rhino: english is not my first language so I have some trouble with definitive articles. I meant to say an alternative
13:17 flying_rhino: well it is somewhat similar to relational databases so the question might be: how would someone implement relational database in typed racket?
13:18 offby1: probably roughly the same way they'd do it in any other language
13:19 offby1: for myself: the one time I wanted to use a relational database from racket (plain racket, not typed racket) I simply used the sqlite interface to talk to an actual sqlite db :)
13:19 offby1: no need to reinvent the wheel
13:22 flying_rhino: this is not an option here because you have to constantly get data from db, every frame. SQL strings are way too slow. Also relational databases aren't exacly indentical to componet based entities. It must be implemented via structures, and (with references being used as foreign keys). I have my idea how to do that, but I am asking for opinions in case someone else tried something similar.
13:23 flying_rhino: so yeah, I pretty much have to reinvent the wheel :)
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13:25 RacketCommitBot: [racket] plt pushed 10 new commits to release: http://git.io/jYwMKg
13:25 RacketCommitBot: [racket/release] db: fix mysql large blobs, other changes - Ryan Culpepper
13:25 RacketCommitBot: [racket/release] docs: will executors are synchronizable events - Matthew Flatt
13:25 RacketCommitBot: [racket/release] fix most-negative number and _int64 on a 64-bit platform - Matthew Flatt
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14:14 ChibaPet: Perhaps this is the wrong place to ask, but why is there no link from htdp.org to http://www.ccs.neu.edu/home/matthias/HtDP2e/index.html ?
14:16 samth: ChibaPet: you should email matthias and suggest that to him
14:16 ChibaPet: Alright.
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14:40 Fare: so how do places differ from fork + pipe + serialization protocol, already?
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14:41 Fare: oh, you also have magic shared memory variables.
14:41 jonrafkind: did you have a fork/pipe/serialization thing set up before?
14:42 samth: Fare: no, you don't have magic shared memory variables
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14:43 samth: you have a shared memory space, for data
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14:46 Fare: how is that different?
14:46 Fare: Do futures count as immutable data as far as being shareable goes?
14:46 samth: no
14:46 Fare: (or lazy-evaluated thingies)
14:46 samth: there's a pretty restricted list in the docs
14:47 samth: http://pre.racket-lang.org/docs/html/reference/places.html?q=place%3F#%28def._%28%28lib._racket/place..rkt%29._place-message-allowed~3f%29%29
14:47 rudybot: http://tinyurl.com/7ufb9nr
14:47 Fare: is there a naming convention for the applicative immutable vs the lazy immutable?
14:47 samth: huh?
14:49 Fare: as in, a haskell guy would say that (delay (f)) is immutable
14:50 Fare: and he'd be right in a way
15:01 Fare: interestingly, it wouldn't be generally possible to guarantee that (f) doesn't evaluate to a mutable array until after you've evaluated it.
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15:30 asumu: How is (delay (f)) immutable?
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15:54 RacketCommitBot: [racket] plt pushed 3 new commits to master: http://git.io/wDU7yw
15:54 RacketCommitBot: [racket/master] Add a blurb on names in the json library. - Eli Barzilay
15:54 RacketCommitBot: [racket/master] Make it possible to run each scribble test file by itself. - Eli Barzilay
15:54 RacketCommitBot: [racket/master] Web pages tweaks. - Eli Barzilay
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15:58 tewk: Is it possible to execute a particular submodule other that main from the racket commandline?
16:00 eli: tewk: I've asked for that on the list, if there's nothing yet it would be good to raise it there again.
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16:03 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/Z4IYbg
16:03 RacketCommitBot: [racket/master] Rename `#:gap-select' -> `#:gap-select?' and some minor doc fixes. - Eli Barzilay
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23:59 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/yEtVvA
23:59 RacketCommitBot: [racket/master] add context to blame error messages - Robby Findler
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