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00:02 adasdsadas: to everyone contributed and helped misterpond, thanks for your time and kindness. really appreciated it
00:11 Lajla: adasdsadas, that was you?
00:11 Lajla: And we are all just really kind.
00:11 Lajla: Especailly samth
00:12 Lajla: even though he thinks I'm a weird idiot, some-thing to do with hypothetically giving money to people that kill my sister.
00:14 adasdsadas: no Misterpond was not me
00:14 adasdsadas: im his friend
00:14 adasdsadas: that's also struggling with the assignment that she's doing
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00:19 offby1: Lajla: aw,, you're using "named let", which I assume is off-limits
00:20 Lajla: offby, named let is overrated.
00:20 Lajla: For myself I have made an 'establish' macro which provides escape, recursion and continuation in one.
00:20 Lajla: Like, I can do (establish ((offby1 4)) ...)
00:21 Lajla: And hen I can use recur in it to recurse.
00:21 Lajla: And escape in it to escape.
00:21 Lajla: Kind of like return.
00:21 Lajla: BECAUSE I KNOW SYNTAX-CASE, WOMAN!
00:22 Lajla: I actually have a shirt which says 'Stand aside, woman, for I know lambda-calculus!'
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00:25 offby1: that's even nerdier than XKCD
00:25 offby1: I used to use named let _all_ the time.
00:25 offby1: Now I use racket's relatively-new iteration thingies: for/list etc.
00:26 Lajla: I use r6 or r5, because I'm awesome like that.
00:26 Lajla: I barely even know all racket's extensions, I do know the basic list SFRI
00:27 Lajla: I actually have no troubles with SRFI's.
00:27 Lajla: offby1, xkcd is not that nerdy.
00:27 jonrafkind: whats the correspondence between operational semantics and interpreters? are they equivalent in expressiveness?
00:27 Lajla: I've made comics myself which assume its readers in some case to know the finer details of functional programming, some compiler stuff, AND have a reasonable command of Sanskrit to get the joke.
00:28 Lajla: jonrafkind, wut, how can you compare that?
00:28 Lajla: I mean, an interpreter isn't even a formal category.
00:28 Lajla: It's just a physical implementation that runs some programming language x for you.
00:28 Lajla: Let's say that I work out myself that (+ 1 2 3) >> 6, then I am basically an interpreter of scheme
00:29 jonrafkind: well i didnt know what to call something that has an explicit `eval' call in it
00:29 jonrafkind: (not scheme's eval, just something that evaluates things)
00:29 Lajla: offby1 now this is weird: http://thisdomainisirrelevant.net/174
00:30 Lajla: jonrafkind, that could be called an interpreter, but from a formal perspective, for instance in Perl, eval is just another function that works on strings and has a side effect and returns a value.
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00:34 offby1: I pretty much don't get Star Wars references.
00:40 Lajla: offby1 ow about this one: http://thisdomainisirrelevant.net/618
00:41 offby1 stares blankly
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00:52 Lajla: offby1, you don't get that one either? =(
00:53 offby1: uh, er, my browser didn't load it properly.  Yeah.
00:53 jonrafkind: real men use the womens bathroom
00:59 Lajla: Ahaha
00:59 Lajla: Real men use women, you mean
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06:23 Lajla makes a snowman out of offby1
06:23 Lajla: (map make-snowman-out-of-offby1 list-of-offby1s)
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11:14 offby1 stoically smokes corncob pipe while slowly melting
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12:09 Lajla: offby1, what is your arity?
12:09 Lajla: Or are you variadic?
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12:36 jonrafkind: eli (or jay-mccarthy) is there a way to prevent eli-tester from printing '4 tests passed' ?
12:36 jay-mccarthy: nope
12:37 jonrafkind: i guess I could parameterize current-output-string or something..
12:37 jonrafkind: i mean -port
12:37 jay-mccarthy: if you want, add a #:keyword option
12:37 jay-mccarthy: the code is really simple
12:37 jonrafkind: yea, i was just thinking that
12:37 jonrafkind: actually the code looks painful :p
12:37 jonrafkind: but ok ill give it a whirl for a few minutes
12:40 jay-mccarthy: simple and painful
12:40 jay-mccarthy: if you want, maybe i could add it after class later
13:11 jonrafkind: ok done
13:20 eli: jonrafkind: Is there any point in a silent tester?
13:24 jonrafkind: so i can have tests without any output
13:24 jonrafkind: if they pass good i dont want to see anything, if they fail i want to know
13:24 jonrafkind: i leave the tests turned on in my program
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14:00 eli: jonrafkind: I'm throwing out your keyword
14:00 jonrafkind: why?
14:00 eli: A parameter seems better for this.
14:00 jonrafkind: ok
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17:17 ttuttle: Hey, is there any way to get a reliable integer count of milliseconds since the Unix epoch in Racket?
17:18 ttuttle: current-seconds doesn't have enough resolution, current-milliseconds doesn't have the right epoch, and current-inexact-milliseconds seems like it might lack precision.
17:24 jonrafkind: i dont think the lack of precision will affect you
17:24 jonrafkind: you aren't writing rocket guidance system code are you?
17:25 ttuttle: I am writing a network client, and I'd like it to track incoming events with more than 1 second resolution
17:25 ttuttle: And everything I know about floating point numbers tells me not to trust them.
17:26 ttuttle: Hmm.  Maybe it will do, if I multiply by 1000 and convert to int.
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17:37 jonrafkind: yea i do that for my network game, convert to int
17:38 jay-mccarthy: ttuttle: if there is a way to do it in unix, you could write a little ffi wrapper
17:38 jonrafkind: there was a long discussion on a game forum about doing just that, people basically said its ok to trust floats, but I still dont :p
17:38 ttuttle: jay-mccarthy: eh, the float is probably fine
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18:47 ttuttle: When the docs say that hash-ref! will accept a thunk, how do I create one?  (Do they mean a promise?)
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18:53 stamourv: ttuttle: (lambda () ...) is a thunk
18:53 ttuttle: okay
18:53 ttuttle: ...wait, what if you wanted to set the value to (lambda () ...)? :P
18:53 stamourv: (lambda () (lambda () ...))
18:54 ttuttle: heh
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19:12 Claudio_rdgz: hi, i'm trying to use the random identifier, but my racked says undefined identifier, i'm using r5rs and i also tried the options in the manual, still no success
19:12 Claudio_rdgz: would it be better if i defined my own random generator?
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19:28 Claudio_rdgz: on the racket manual says that (random n) gives a random number
19:28 Claudio_rdgz: but still
19:28 Claudio_rdgz: on my drracket it doesn't
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19:52 Fare: eli: I backtracked from implementing a parser for your scribble to implementing a parsing infrastructure to implementing backtracking to implementing continuations. Damn!
19:53 Fare: I'm hesitating to use delico, basically a CPS interpreter of CL+continuations in CL.
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21:19 eli: Fare: None of that is really needed, you know...  Aside from some complex corners, it's intended to be a simple syntax.
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23:04 Fare: I know.
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