←2019-04-23 2019-04-24 2019-04-25→ ↑2019 ↑all
00:00:07 <Cale> exactly
00:00:56 <sombrero> memory RUSTfety
00:00:57 <shachaf> What's a managed heap? Garbage collection?
00:00:57 <Cale> I also want to be able to reasonably say to someone "hey, don't do that or you'll be fired"
00:02:05 <int-e> And I've certainly written Haskell code as a prototype and reimplemented it in C++ for speed after I figured out the right algorithm, for combinatorial enumerations.
00:02:19 <int-e> shachaf: Yes, GC is usually implied.
00:02:32 <int-e> That and memory safety.
00:03:03 <shachaf> Garbage collection seems pretty scow to me.
00:03:15 <shachaf> If you start with garbage collection you can't really remove it later, even locally.
00:03:21 <shachaf> It's fundamentally a global thing.
00:03:42 <shachaf> If you had local heaps with no external pointer, the argument for GC would be stronger.
00:04:50 <int-e> Hmm, isn't that covered by regions? You don't have to give up the runtime-management for that, really.
00:05:35 <shachaf> I don't think I know languages that do local GC. Probably because global pointers are great.
00:05:39 <int-e> (I'm talking in principle, not about GHC. GHC doesn't have this. It has nurseries which somewhat help, keeping scratch objects thread-local.)
00:05:44 <shachaf> I guess Erlang does.
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00:08:49 <int-e> AFAIUI GHC pays for thread-local nurseries by an expensive write barrier: If you update a pointer on the global heap (after evaluating a thunk) with a local object, that object will be promoted immediately.
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00:11:46 <int-e> Anyway. A partial answer for GHC is that you can allocate a pinned object for scratch space and play around with that all you like, even from foreign code.
00:20:30 <shachaf> That's not really an answer, though.
00:20:42 <shachaf> GHC still needs to stop the world for collecting the global heap, doesn't it?
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00:39:54 <shachaf> U+1F391 MOON VIEWING CEREMONY [🎑]
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01:31:50 <esowiki> [[Special:Log/newusers]] create * Snidbert64 * New user account
01:34:12 <esowiki> [[Esolang:Introduce yourself]] M https://esolangs.org/w/index.php?diff=61338&oldid=61327 * Snidbert64 * (+176) /* Introductions */
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02:40:40 <sombrero> mmm, almost I forgot it, if some want a DSL instead of a PL to tackle pixels, https://bmao.tech/PixelPlusPlus/ is a good option
02:42:50 <sombrero> ...not in the sense of Piet, lol
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03:35:35 <kmc> I'm stuck on BIY
03:35:53 <kmc> level fall-5: haunt
03:42:46 <kmc> yaay solved it
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05:20:55 <esowiki> [[User:A]] https://esolangs.org/w/index.php?diff=61339&oldid=61334 * A * (+98) /* A (quite weird) idea about programming GNU nano, the text editor */
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09:16:57 <oerjan> @metar ENVA
09:16:58 <lambdabot> ENVA 240850Z 15017G27KT CAVOK 17/M02 Q1019 NOSIG RMK WIND 670FT 18028KT
09:17:05 <oerjan> springy
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10:16:11 <DamZ> Hi
10:17:03 <DamZ> leave
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12:27:42 <rain1> I find the "bag of sentences" aspect of the baba is you language fascinating
12:28:12 <rain1> the sentences are completely unordered, meaning that the same effect regardless of where they are
12:28:16 <rain1> they have the same effect*
12:28:30 <rain1> i think this would be difficult to implement
12:29:00 <rain1> maybe a good way to implement it would be with something like a logic sat solver
12:29:18 <rain1> that would ensure the effect of the rules respects the lack of ordering
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15:21:50 <fizzie> So what happens to X's if in one move you construct both "X is Y" and "X is Z" rules?
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16:39:34 <orin> fizzie: oh geez I dunno. rules can be blocked by other rules. "BaBa is BaBa" blocks "BaBa is key" for example
16:39:53 <orin> I need to play that game more
16:45:50 <int-e> fizzie: you're on to something
16:50:39 <kmc> fizzie: I'm not sure either
16:51:15 <kmc> the interesting one I learned yesterday is that 'box is text' will turn every box into the text 'box'
16:51:24 <kmc> so it's like a quotation operator
16:51:43 <kmc> admittedly not that useful because now you have no boxes left to refer to
16:56:28 <kmc> useful here though: (spoiler) https://www.youtube.com/watch?v=5pdFaCNrdhg
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17:45:08 <int-e> kmc: have you discovered words yet?
17:48:19 <kmc> what do you mean
17:48:35 <int-e> that's a no then
17:48:43 <int-e> :P
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17:56:04 <esowiki> [[The Genius from Kiev]] N https://esolangs.org/w/index.php?oldid=61340 * Areallycoolusername * (+2425) Created page with "'''The Genius From Kiev''' is a series of esoteric programming languages made by [[User: Areallycoolusername|Areallycoolusername]] to be the exact opposite of The Amnesiac F..."
17:57:15 <esowiki> [[User:Areallycoolusername]] https://esolangs.org/w/index.php?diff=61341&oldid=60982 * Areallycoolusername * (+27)
17:57:39 <esowiki> [[User:Areallycoolusername]] https://esolangs.org/w/index.php?diff=61342&oldid=61341 * Areallycoolusername * (+0) /* Full List of languages I Made */
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18:39:37 <rain1> fizzie: if you have X is Y is Z is W is X
18:39:50 <rain1> the result is that X becomes Y in one turn, and then Y becomes Z
18:40:29 <int-e> how about a #esoteric-baba
18:40:35 <int-e> you're spoiling all the things
18:40:58 <rain1> https://twitter.com/babaisyou_/status/1099862522075717632
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19:03:42 <rain1> https://www.youtube.com/watch?v=7lVAFcDX4eM
19:03:50 <rain1> Raycasting engine in Factorio (vanilla 0.17) - Facto-RayO v1.0
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19:12:53 <fizzie> rain1: That's fine, but not what I was wondering about.
19:13:20 <rain1> oh sorry i misread your question
19:14:00 <rain1> did anyone have some ideas about how to implement game rules that don't care about the order?
19:15:02 <shachaf> Half the questions being asked here are spoilers.
19:15:37 <rain1> I don't see how they're spoilers
19:15:49 <rain1> none of them reference a specific level
19:16:06 <fizzie> I assume they're things you might not think of trying, that will be useful in a specific level.
19:16:08 <shachaf> The fun of the game is to figure out the rules.
19:16:22 <shachaf> Well, a fun of the game.
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19:37:32 <oerjan> `? oerjan
19:37:34 <HackEso> Your omnidryad saddle principal ideal golfing toe-obsessed "Darth Ook" oerjan the shifty eldrazi grinch is a punctual expert in minor compaction. Also a Groadep who minces Roald Dahl. He could never remember the word "amortized" so he put it here for convenience. His ark-nemesis is Noah. He twice punned without noticing it.
19:41:52 -!- oerjan has set topic: Spoiler is ban | Welcome to the international stock market for esoteric programming language invention, implementation, ignorance, innovation, and integration! | https://esolangs.org | logs: https://esolangs.org/logs/ http://codu.org/logs/_esoteric/ http://tunes.org/~nef/logs/esoteric/?C=M;O=D | https://www.dropbox.com/s/fyhqyvy3i8oh25m/wisdom.pdf.
19:42:59 <oerjan> . o O ( should that be capitalized )
19:43:57 <int-e> `? baba
19:43:59 <HackEso> baba? ¯\(°​_o)/¯
19:44:19 <int-e> hmm that's case sensitive, isn't it...
19:45:02 <oerjan> no.
19:45:31 <oerjan> `learn BABA IS ¯\(°​_o)/¯
19:45:34 <HackEso> Learned 'baba': BABA IS ¯\(°​_o)/¯
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20:04:11 <kmc> rain1: I think a unification engine would do it?
20:04:24 <rain1> i dont think so
20:06:08 <kmc> isn't it basically just a set of x = y rules?
20:06:15 <kmc> with no internal variables
20:06:45 <kmc> shachaf: did you say there are some nondeterministic rules?
20:10:16 <shachaf> Yes.
20:11:50 <kmc> how's that work?
20:14:36 <shachaf> One instance is zhygvcyr GRYR gnetrgf naq nabgure vafgnapr vf bevragngvba bs RZCGL VF K
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21:12:18 <kmc> I haven't encountered RZCGL VF K
21:12:30 <kmc> sounds p. exciting
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21:14:10 <int-e> shachaf: did you know that there are sprites for NAAVR walking?
21:17:10 <shachaf> I didn't. Sounds like the best.
21:17:28 <shachaf> Also I have to rot13 in my head now since I'm at my phone.
21:17:40 <int-e> ouch.
21:17:53 <int-e> Though I guess that one wasn't do bad.
21:18:34 <int-e> I mean, this is my rot13 program: tr A-Za-z N-ZA-Mn-za-m... so a and n are easy :)
21:19:28 <shachaf> I played the demo a long time ago. I think ORFG was in there.
21:19:37 <shachaf> Though it may have been KEKE
21:19:39 <oerjan> just make sure you don't become so good at rot13 in your head you cannot avoid decoding it
21:20:36 <shachaf> sounds dangerous
21:20:48 <shachaf> we'll have to go to rot14
21:21:28 <int-e> shachaf: yes, orfg was there.
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21:32:01 <shachaf> You played the demo?
21:32:34 <int-e> . o O ( SHACHAF is YOU. )
21:32:48 * int-e didn't play the demo.
21:34:14 <shachaf> But you have information regarding the existence of orfg
21:35:48 <int-e> shachaf: it features in a level in the release, but is inaccessible as far as I can tell.
21:37:32 <shachaf> j
21:37:37 <shachaf> Oh.
21:37:59 <shachaf> I mean the demo has KEKE IS BEST or something like that
21:38:36 <int-e> Lonely Flag is the level (rocket area)
21:39:09 <int-e> <3 there's a walkthrough so I'm not tempted to reinstall the game.
21:41:50 <shachaf> BABA IS BEST
21:42:26 <shachaf> Oh, it's NAAV
21:44:12 <int-e> yeah, my bad.
21:44:18 * int-e IS NOT BEST.
22:09:05 <kmc> i'm writing a mitm inspection tool for mosh
22:09:31 <kmc> nice thing about UDP is you can restart the MITM without restarting the client or the server!
22:09:35 <kmc> mosh just interprets it as a bout of packet loss
22:14:16 <kmc> hmm, if you index a python3 bytestring you get an int and not a 1-byte bytestring
22:14:21 <kmc> i guess that's reasonable, but it was a bit surprising
22:17:44 * kmc is slowly but surely getting her programming mojo back
22:20:51 <pikhq> madness
22:21:34 <int-e> kmc: Hmm does that do anything useful to an attacker without knowing the underlying key? I guess timing packets is of some interest... After a brief look, learning the key itself should be hard (unless you MITM the initial ssh connection as well, at least)
22:22:04 <kmc> it could be useful for timing and packet-length analysis, although you can observe that passively
22:22:10 <kmc> and it could also be useful for fuzzing
22:22:15 <kmc> but i'm not making it for security purposes
22:22:22 <int-e> okay, just wondering :)
22:22:37 <kmc> one thing I can do with this is drop packets or add lag as desired
22:22:52 <kmc> anyway it's the first step of my crazy scheme to run mosh over long distance shortwave radio
22:23:37 <int-e> Oh you are making a proxy/tunnel in the end. :)
22:23:49 <kmc> yes
22:24:14 <kmc> also I will be removing the encryption to comply with ham radio rules
22:24:25 <kmc> my interpretation of the rules is that it's okay to keep the authentication tag
22:24:30 <kmc> but I expect to have people argue with me about this
22:24:38 <kmc> since armchair rules lawyering is an important part of ham radio
22:26:14 <kmc> https://i.imgur.com/ffKr7Xo.png
22:26:19 <kmc> (this is still encrypted for the time being)
22:28:55 <int-e> heh, now I'm pondering the meaning of TL9H1MPF
22:29:21 <int-e> I *think* I've figured out the "LAPTOP" part of it though. :)
22:29:48 <kmc> I think it's just some hash that is assigned when you set up windows
22:30:19 <kmc> this thing is called moshmodem
22:31:11 <kmc> because it will translate UDP packets into audio output from your sound card, and audio input from the sound card into UDP packets
22:31:30 <kmc> I'm not sure what modulation scheme to use, probably something simple and dumb at first
22:31:37 <kmc> 8-tone FSK with a start tone, or something
22:32:29 <kmc> fortunately mosh already has a checksum and handles dropped or corrupted packets
22:32:37 <kmc> but I expect to get a lot of retransmits at that rate
22:32:42 <kmc> which will reduce the already dismal data rate
22:32:57 <kmc> so I think some FEC would be called for, and modulation with better processing gain
22:33:36 <int-e> Also the first 8 bytes of the packets (sequence numbers) don't look encrypted... can you cause trouble there? But maybe not, if these numbers are part of the message authentication.
22:33:56 <int-e> It still feels wrong to have them in plain sight like that, to me.
22:34:03 <kmc> I think you can already run Mosh over AX.25, but that's a bunch of complexity and setup hassle that isn't really necessary
22:34:09 <kmc> my scheme won't involve a network stack per se
22:34:21 <kmc> int-e: it is a sequence number, which is also the nonce for AES-OCB
22:34:47 <int-e> you can estimate the lifetime of a mosh session from there.
22:39:01 <kmc> this is true
22:39:08 <kmc> you could use random nonces instead
22:39:12 <kmc> if the ocb nonce is long enough, i forget
22:39:19 <kmc> you'd still need a sequence number, but could encrypt it
22:43:58 <int-e> "a given key should be used to encrypt at most 2^48 blocks" <-- maybe not a concern for this particular use :)
22:44:20 <kmc> there's actually code in there to abort the session if you hit that limit
22:44:48 <int-e> Fun.
22:45:32 <int-e> Oh well, off to bed.
22:45:43 <kmc> ttyl int-e
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23:12:10 <kmc> "We deem it unlikely that a legitimate user will send 4 PB through a Mosh session. If it happens, we simply kill the session. The server and client use the same key, so we actually need to die after 2^47 blocks."
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