2025/01/11

2025-01-11 00:03:52 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 252 seconds)
2025-01-11 00:05:36 +0100ChaiTRex(~ChaiTRex@user/chaitrex) (Ping timeout: 264 seconds)
2025-01-11 00:06:14 +0100saulosilva(~saulosilv@181.216.220.21) saulosilva
2025-01-11 00:06:30 +0100alecs(~alecs@61.pool85-58-154.dynamic.orange.es) alecs
2025-01-11 00:07:12 +0100 <euouae> c_wraith: answer to what?
2025-01-11 00:08:00 +0100 <c_wraith> how to enumerate rationals efficiently
2025-01-11 00:08:14 +0100ChaiTRex(~ChaiTRex@user/chaitrex) ChaiTRex
2025-01-11 00:11:25 +0100 <euouae> c_wraith: well a straightforward way is a simple generator formula that I extracted from that paper
2025-01-11 00:11:44 +0100 <euouae> I'm not going for 100% efficiency in terms of flops and all that -- just an O(1) memory/time generating formula
2025-01-11 00:13:02 +0100 <euouae> c_wraith: <https://termbin.com/barw> here's my Haskell code of that paper. `rats7` is the fast implementation and it only relies on `inverse` and `next`.
2025-01-11 00:14:55 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 00:16:51 +0100 <euouae> not "fast". I should say "cheap" like O(1) memory/time
2025-01-11 00:18:24 +0100 <c_wraith> ... to be clear, that's not O(1), because Rational isn't constant-space or constant-time
2025-01-11 00:19:01 +0100 <c_wraith> But arbitrary-precision prevents those in general. It's not an issue with Rational.
2025-01-11 00:19:38 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 265 seconds)
2025-01-11 00:20:23 +0100 <euouae> yes
2025-01-11 00:20:56 +0100avdb13(~avdb13@2001-14ba-a0a9-f200--18c.rev.dnainternet.fi)
2025-01-11 00:21:25 +0100tromp(~textual@92-110-219-57.cable.dynamic.v4.ziggo.nl) (Quit: My iMac has gone to sleep. ZZZzzz…)
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2025-01-11 00:30:18 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
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2025-01-11 00:45:40 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
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2025-01-11 00:54:41 +0100SlackCoder(~SlackCode@64-94-63-8.ip.weststar.net.ky) SlackCoder
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2025-01-11 01:27:25 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 01:31:52 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 252 seconds)
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2025-01-11 01:42:48 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 01:43:52 +0100 <EvanR> "flops" to measure the efficiency of rational numbers
2025-01-11 01:44:17 +0100 <EvanR> xD
2025-01-11 01:44:54 +0100 <EvanR> one of these programming languages comes with rational number backed by ints instead of arbitrary precision
2025-01-11 01:45:07 +0100 <EvanR> I guess this works about as well as "int" for representing integers
2025-01-11 01:47:15 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 252 seconds)
2025-01-11 01:49:30 +0100peterbecich(~Thunderbi@syn-047-229-123-186.res.spectrum.com) peterbecich
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2025-01-11 02:24:19 +0100saulosilva(~saulosilv@181.216.220.21) saulosilva
2025-01-11 02:25:16 +0100 <saulosilva> Hello
2025-01-11 02:28:55 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 02:33:13 +0100 <geekosaur> hi
2025-01-11 02:35:40 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 252 seconds)
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2025-01-11 03:21:15 +0100euouae(~euouae@user/euouae) euouae
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2025-01-11 03:33:47 +0100Jeanne-Kamikaze(~Jeanne-Ka@142.147.89.228) Jeanne-Kamikaze
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2025-01-11 04:32:26 +0100JuanDaugherty(~juan@user/JuanDaugherty) JuanDaugherty
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2025-01-11 04:38:50 +0100ChanServ+o litharge
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2025-01-11 04:51:50 +0100TheCoffeMaker(~TheCoffeM@user/thecoffemaker) (Quit: So long and thanks for all the fish)
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2025-01-11 07:22:11 +0100housemate(~housemate@146.70.66.228) (Quit: Nothing to see here. I wasn't there. I take IRC seriously. I do not work for any body DIRECTLY although I do represent BOT NET.)
2025-01-11 07:25:53 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
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2025-01-11 08:57:07 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 09:00:00 +0100caconym(~caconym@user/caconym) (Quit: bye)
2025-01-11 09:00:38 +0100caconym(~caconym@user/caconym) caconym
2025-01-11 09:02:07 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 265 seconds)
2025-01-11 09:03:34 +0100machinedgod(~machinedg@d108-173-18-100.abhsia.telus.net) (Ping timeout: 265 seconds)
2025-01-11 09:03:38 +0100weary-traveler(~user@user/user363627) (Remote host closed the connection)
2025-01-11 09:04:14 +0100tromp(~textual@92-110-219-57.cable.dynamic.v4.ziggo.nl) (Quit: My iMac has gone to sleep. ZZZzzz…)
2025-01-11 09:12:29 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 09:19:22 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 252 seconds)
2025-01-11 09:26:28 +0100ash3en(~Thunderbi@2a03:7846:b6eb:101:93ac:a90a:da67:f207) ash3en
2025-01-11 09:29:59 +0100tnt1(~Thunderbi@user/tnt1) (Ping timeout: 252 seconds)
2025-01-11 09:30:23 +0100tnt1(~Thunderbi@user/tnt1) tnt1
2025-01-11 09:30:32 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 09:35:08 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 252 seconds)
2025-01-11 09:38:10 +0100L29Ah(~L29Ah@wikipedia/L29Ah) L29Ah
2025-01-11 09:39:08 +0100housemate(~housemate@146.70.66.228) housemate
2025-01-11 09:40:21 +0100rvalue(~rvalue@user/rvalue) (Ping timeout: 248 seconds)
2025-01-11 09:41:27 +0100housemate(~housemate@146.70.66.228) (Max SendQ exceeded)
2025-01-11 09:42:28 +0100housemate(~housemate@146.70.66.228) housemate
2025-01-11 09:45:31 +0100dtman34(~dtman34@2601:447:d080:1a3c:b02a:8bb0:8f4f:58a0) (Ping timeout: 252 seconds)
2025-01-11 09:45:55 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 09:46:06 +0100dtman34(~dtman34@c-174-53-203-90.hsd1.mn.comcast.net) dtman34
2025-01-11 09:46:57 +0100mreh(~matthew@host86-146-25-121.range86-146.btcentralplus.com)
2025-01-11 09:50:57 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 248 seconds)
2025-01-11 09:56:51 +0100housemate(~housemate@146.70.66.228) (Read error: Connection reset by peer)
2025-01-11 09:57:44 +0100housemate(~housemate@146.70.66.228) housemate
2025-01-11 09:58:07 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 09:58:46 +0100housemate(~housemate@146.70.66.228) (Remote host closed the connection)
2025-01-11 09:59:10 +0100rvalue(~rvalue@user/rvalue) rvalue
2025-01-11 10:00:23 +0100ash3en(~Thunderbi@2a03:7846:b6eb:101:93ac:a90a:da67:f207) (Quit: ash3en)
2025-01-11 10:02:41 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 248 seconds)
2025-01-11 10:06:54 +0100target_i(~target_i@user/target-i/x-6023099) target_i
2025-01-11 10:11:48 +0100swistak(~swistak@185.21.216.141) (Ping timeout: 252 seconds)
2025-01-11 10:13:30 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 10:14:54 +0100tromp(~textual@92-110-219-57.cable.dynamic.v4.ziggo.nl)
2025-01-11 10:16:33 +0100CiaoSen(~Jura@2a05:5800:2ef:f000:ca4b:d6ff:fec1:99da) (Ping timeout: 265 seconds)
2025-01-11 10:18:01 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 252 seconds)
2025-01-11 10:28:54 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 10:30:11 +0100tzh(~tzh@c-76-115-131-146.hsd1.or.comcast.net) (Quit: zzz)
2025-01-11 10:31:43 +0100hueso(~root@user/hueso) (Quit: hueso)
2025-01-11 10:33:26 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 252 seconds)
2025-01-11 10:33:39 +0100hueso(~root@user/hueso) hueso
2025-01-11 10:44:17 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 10:45:15 +0100swistak(~swistak@185.21.216.141)
2025-01-11 10:49:15 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 244 seconds)
2025-01-11 10:49:39 +0100acidjnk(~acidjnk@p200300d6e7283f9048e4a8ec3d592563.dip0.t-ipconnect.de) acidjnk
2025-01-11 10:49:49 +0100harveypwca(~harveypwc@2601:246:d080:b40:1889:d9bf:2dd8:b288) HarveyPwca
2025-01-11 10:52:46 +0100lisbeths(uid135845@id-135845.lymington.irccloud.com) (Quit: Connection closed for inactivity)
2025-01-11 10:53:24 +0100harveypwca(~harveypwc@2601:246:d080:b40:1889:d9bf:2dd8:b288) (Remote host closed the connection)
2025-01-11 10:59:07 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 11:00:55 +0100Sgeo(~Sgeo@user/sgeo) (Read error: Connection reset by peer)
2025-01-11 11:10:12 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 265 seconds)
2025-01-11 11:21:01 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 11:25:30 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 252 seconds)
2025-01-11 11:26:31 +0100harveypwca(~harveypwc@2601:246:d080:b40:1889:d9bf:2dd8:b288) HarveyPwca
2025-01-11 11:29:27 +0100acidjnk(~acidjnk@p200300d6e7283f9048e4a8ec3d592563.dip0.t-ipconnect.de) (Ping timeout: 246 seconds)
2025-01-11 11:30:36 +0100vanishingideal(~vanishing@user/vanishingideal) (Ping timeout: 276 seconds)
2025-01-11 11:30:56 +0100Tuplanolla(~Tuplanoll@91-159-69-59.elisa-laajakaista.fi) Tuplanolla
2025-01-11 11:32:04 +0100vanishingideal(~vanishing@user/vanishingideal) vanishingideal
2025-01-11 11:36:22 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 11:41:10 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 260 seconds)
2025-01-11 11:48:19 +0100 <kaol> I find <$>'s precedence awkward. I tend to write code like "f1 . f2 <$> g1 $ g2 x" which I'd expect to work like "f1 . f2 <$> g1 (g2 x)" and not "(f1 . f2 <$> g1) (g2 x)".
2025-01-11 11:49:17 +0100 <kaol> I then write "fmap (f1 . f2) $ g1 $ g2 x" instead.
2025-01-11 11:51:47 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 11:51:56 +0100wootehfoot(~wootehfoo@user/wootehfoot) wootehfoot
2025-01-11 11:53:46 +0100CiaoSen(~Jura@2a05:5800:2ef:f000:ca4b:d6ff:fec1:99da) CiaoSen
2025-01-11 11:54:59 +0100 <Rembane> kaol: Super legit, you can also write (fmap (f1 . f2) . g1 . g2) x
2025-01-11 11:56:14 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 245 seconds)
2025-01-11 12:08:42 +0100harveypwca(~harveypwc@2601:246:d080:b40:1889:d9bf:2dd8:b288) (Quit: Leaving)
2025-01-11 12:09:19 +0100 <Leary> kaol: The purpose of `$` is to be application that's a greedy as possible, by having the least precedence. If you have other expectations then you're misusing it. `g1 (g2 x)` and `(g1 . g2) x` are both cleaner options anyway.
2025-01-11 12:11:09 +0100tnt2(~Thunderbi@user/tnt1) tnt1
2025-01-11 12:11:17 +0100tnt1(~Thunderbi@user/tnt1) (Ping timeout: 248 seconds)
2025-01-11 12:11:17 +0100tnt2tnt1
2025-01-11 12:14:41 +0100 <kaol> <$> is so similar to $ even down to the $ and I've gathered it's intentional except that's one thing where it isn't.
2025-01-11 12:15:58 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 12:17:28 +0100rachelambda8(~rachelamb@cust-95-80-25-71.csbnet.se) (Quit: β reduced)
2025-01-11 12:17:55 +0100tnt1(~Thunderbi@user/tnt1) (Ping timeout: 252 seconds)
2025-01-11 12:18:21 +0100tnt1(~Thunderbi@user/tnt1) tnt1
2025-01-11 12:19:50 +0100rachelambda8(~rachelamb@cust-95-80-25-71.csbnet.se)
2025-01-11 12:22:36 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 276 seconds)
2025-01-11 12:31:35 +0100SlackCoder(~SlackCode@64-94-63-8.ip.weststar.net.ky) (Quit: Leaving)
2025-01-11 12:32:56 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 12:37:41 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 265 seconds)
2025-01-11 12:42:15 +0100 <kaol> > let (€) = (*1.03) in (€) $ 1.0
2025-01-11 12:42:16 +0100 <lambdabot> 1.03
2025-01-11 12:43:20 +0100ash3en(~Thunderbi@2a03:7846:b6eb:101:93ac:a90a:da67:f207) ash3en
2025-01-11 12:48:18 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 12:52:46 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 252 seconds)
2025-01-11 12:54:10 +0100acidjnk(~acidjnk@p200300d6e7283f90c8dc7c78c19bd00e.dip0.t-ipconnect.de) acidjnk
2025-01-11 12:54:37 +0100 <[exa]> kaol: wasn't there a library that literally allowed you to write "5 eur"? (via the usual typeclass trickery)
2025-01-11 12:56:08 +0100 <ncf> > let (€) = (*1.03) in (1.0 €)
2025-01-11 12:56:10 +0100 <lambdabot> 1.03
2025-01-11 12:59:26 +0100ljdarj(~Thunderbi@user/ljdarj) ljdarj
2025-01-11 12:59:27 +0100 <tomsmeding> the € symbol is written prefix
2025-01-11 12:59:52 +0100 <tomsmeding> too bad that won't work with the syntax :p
2025-01-11 12:59:53 +0100 <[exa]> not everywhere :(
2025-01-11 13:00:04 +0100caconym(~caconym@user/caconym) (Quit: bye)
2025-01-11 13:00:24 +0100AlexNoo_(~AlexNoo@178.34.160.135)
2025-01-11 13:00:28 +0100 <tomsmeding> TIL
2025-01-11 13:00:51 +0100 <haskellbridge> <magic_rb> In slovakia its postfix yeah
2025-01-11 13:01:06 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 13:01:34 +0100 <haskellbridge> <magic_rb> {-# LANGUAGE PrefixUnaryOperators #-} when
2025-01-11 13:01:42 +0100 <ncf> isn't € suffixed in most places that actually use €
2025-01-11 13:01:51 +0100 <tomsmeding> there aren't unary operators in the first place
2025-01-11 13:01:53 +0100caconym(~caconym@user/caconym) caconym
2025-01-11 13:02:01 +0100 <haskellbridge> <magic_rb> -10 is :)
2025-01-11 13:02:14 +0100 <tomsmeding> ncf: apparently, and apparently NL is one of the few where it's written prefix
2025-01-11 13:02:15 +0100 <haskellbridge> <magic_rb> So yea, first we need UnaryOperators
2025-01-11 13:02:26 +0100 <tomsmeding> magic_rb: that one is built-in :p
2025-01-11 13:02:34 +0100 <haskellbridge> <magic_rb> Ye ik :P
2025-01-11 13:02:48 +0100 <tomsmeding> LexicalNegation is relevant
2025-01-11 13:03:43 +0100 <haskellbridge> <magic_rb> Cant wait for (* 4 (+ 4 5)) to be valid haskell code
2025-01-11 13:03:43 +0100 <kaol> I wrote it like that since I wanted to abuse $.
2025-01-11 13:03:45 +0100AlexZenon(~alzenon@94.233.240.147) (Ping timeout: 252 seconds)
2025-01-11 13:03:52 +0100 <kaol> Even more.
2025-01-11 13:04:04 +0100AlexNoo(~AlexNoo@94.233.240.147) (Ping timeout: 252 seconds)
2025-01-11 13:08:45 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 276 seconds)
2025-01-11 13:12:39 +0100AlexZenon(~alzenon@178.34.160.135)
2025-01-11 13:14:28 +0100housemate(~housemate@146.70.66.228) housemate
2025-01-11 13:18:16 +0100mrmr155334346318(~mrmr@user/mrmr) mrmr
2025-01-11 13:19:08 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 13:19:12 +0100housemate(~housemate@146.70.66.228) (Read error: Connection reset by peer)
2025-01-11 13:20:05 +0100__monty__(~toonn@user/toonn) toonn
2025-01-11 13:20:14 +0100housemate(~housemate@146.70.66.228) housemate
2025-01-11 13:20:38 +0100swistak(~swistak@185.21.216.141) (Ping timeout: 244 seconds)
2025-01-11 13:20:45 +0100housemate(~housemate@146.70.66.228) (Read error: Connection reset by peer)
2025-01-11 13:21:29 +0100housemate(~housemate@146.70.66.228) housemate
2025-01-11 13:24:20 +0100housemate(~housemate@146.70.66.228) (Client Quit)
2025-01-11 13:24:49 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 260 seconds)
2025-01-11 13:27:22 +0100pera(~pera@user/pera) pera
2025-01-11 13:31:49 +0100ash3en(~Thunderbi@2a03:7846:b6eb:101:93ac:a90a:da67:f207) (Ping timeout: 248 seconds)
2025-01-11 13:35:26 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 13:36:04 +0100__monty__(~toonn@user/toonn) (Quit: leaving)
2025-01-11 13:40:04 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 252 seconds)
2025-01-11 13:40:12 +0100ash3en(~Thunderbi@2a03:7846:b6eb:101:93ac:a90a:da67:f207) ash3en
2025-01-11 13:41:43 +0100FragByte_(~christian@user/fragbyte) FragByte
2025-01-11 13:42:06 +0100FragByte(~christian@user/fragbyte) (Ping timeout: 246 seconds)
2025-01-11 13:42:06 +0100FragByte_FragByte
2025-01-11 13:46:28 +0100ash3en(~Thunderbi@2a03:7846:b6eb:101:93ac:a90a:da67:f207) (Ping timeout: 244 seconds)
2025-01-11 13:47:35 +0100FragByte_(~christian@user/fragbyte) FragByte
2025-01-11 13:48:14 +0100smalltalkman(uid545680@id-545680.hampstead.irccloud.com) (Quit: Connection closed for inactivity)
2025-01-11 13:48:32 +0100FragByte(~christian@user/fragbyte) (Ping timeout: 244 seconds)
2025-01-11 13:48:32 +0100FragByte_FragByte
2025-01-11 13:50:49 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 13:51:22 +0100CiaoSen(~Jura@2a05:5800:2ef:f000:ca4b:d6ff:fec1:99da) (Ping timeout: 252 seconds)
2025-01-11 13:55:49 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 248 seconds)
2025-01-11 14:02:06 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 14:03:31 +0100supercode(~supercode@user/supercode) supercode
2025-01-11 14:06:29 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 248 seconds)
2025-01-11 14:07:09 +0100swistak(~swistak@185.21.216.141)
2025-01-11 14:11:25 +0100jinsun_(~jinsun@user/jinsun) jinsun
2025-01-11 14:11:25 +0100jinsunGuest6442
2025-01-11 14:11:25 +0100jinsun_jinsun
2025-01-11 14:14:28 +0100 <zero> > let (#) = succ in (6 #)
2025-01-11 14:14:30 +0100 <lambdabot> 7
2025-01-11 14:15:00 +0100Guest6442(~jinsun@user/jinsun) (Ping timeout: 246 seconds)
2025-01-11 14:17:29 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 14:18:47 +0100 <tomsmeding> % let (++) = succ in (6++)
2025-01-11 14:18:47 +0100 <yahb2> 7
2025-01-11 14:19:29 +0100FragByte(~christian@user/fragbyte) (Quit: Quit)
2025-01-11 14:19:53 +0100 <[exa]> magic_rb: czechoslovak hi5
2025-01-11 14:20:14 +0100 <zero> zm
2025-01-11 14:20:57 +0100 <[exa]> zero: ok wow cool
2025-01-11 14:21:19 +0100FragByte(~christian@user/fragbyte) FragByte
2025-01-11 14:24:09 +0100swistak(~swistak@185.21.216.141) (Ping timeout: 276 seconds)
2025-01-11 14:26:45 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 276 seconds)
2025-01-11 14:26:56 +0100machinedgod(~machinedg@d108-173-18-100.abhsia.telus.net) machinedgod
2025-01-11 14:28:22 +0100swistak(~swistak@185.21.216.141)
2025-01-11 14:33:41 +0100tromp(~textual@92-110-219-57.cable.dynamic.v4.ziggo.nl) (Quit: My iMac has gone to sleep. ZZZzzz…)
2025-01-11 14:37:09 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 14:41:39 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 252 seconds)
2025-01-11 14:43:05 +0100ash3en(~Thunderbi@2a03:7846:b6eb:101:93ac:a90a:da67:f207) ash3en
2025-01-11 14:43:07 +0100AlexZenon(~alzenon@178.34.160.135) (Ping timeout: 252 seconds)
2025-01-11 14:43:56 +0100rvalue(~rvalue@user/rvalue) (Read error: Connection reset by peer)
2025-01-11 14:44:33 +0100rvalue(~rvalue@user/rvalue) rvalue
2025-01-11 14:45:57 +0100AlexZenon(~alzenon@178.34.160.135)
2025-01-11 14:46:09 +0100wootehfoot(~wootehfoo@user/wootehfoot) (Quit: Leaving)
2025-01-11 14:52:31 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 14:59:13 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 248 seconds)
2025-01-11 14:59:44 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 15:05:30 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 252 seconds)
2025-01-11 15:14:20 +0100AlexNoo_AlexNoo
2025-01-11 15:16:28 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 15:17:40 +0100aforemny_(~aforemny@2001:9e8:6cc3:c600:66d6:598d:d25f:7909) (Ping timeout: 265 seconds)
2025-01-11 15:23:28 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 265 seconds)
2025-01-11 15:23:28 +0100gentauro(~gentauro@user/gentauro) (Read error: Connection reset by peer)
2025-01-11 15:28:48 +0100gentauro(~gentauro@user/gentauro) gentauro
2025-01-11 15:34:31 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 15:39:33 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 276 seconds)
2025-01-11 15:42:55 +0100wootehfoot(~wootehfoo@user/wootehfoot) wootehfoot
2025-01-11 15:49:54 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 15:51:08 +0100califax_(~califax@user/califx) califx
2025-01-11 15:51:12 +0100califax(~califax@user/califx) (Ping timeout: 264 seconds)
2025-01-11 15:52:21 +0100califax_califax
2025-01-11 15:53:42 +0100prasad(~Thunderbi@c-73-75-25-251.hsd1.in.comcast.net)
2025-01-11 15:54:08 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 245 seconds)
2025-01-11 15:59:53 +0100Katarushisu(~Katarushi@finc-20-b2-v4wan-169598-cust1799.vm7.cable.virginm.net) (Read error: Connection reset by peer)
2025-01-11 16:05:15 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 16:08:06 +0100tromp(~textual@92-110-219-57.cable.dynamic.v4.ziggo.nl)
2025-01-11 16:09:37 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 248 seconds)
2025-01-11 16:14:04 +0100Katarushisu(~Katarushi@finc-20-b2-v4wan-169598-cust1799.vm7.cable.virginm.net) Katarushisu
2025-01-11 16:17:07 +0100OftenFaded(~OftenFade@user/tisktisk) (Ping timeout: 244 seconds)
2025-01-11 16:19:13 +0100OftenFaded(~OftenFade@user/tisktisk) OftenFaded
2025-01-11 16:19:56 +0100Katarushisu(~Katarushi@finc-20-b2-v4wan-169598-cust1799.vm7.cable.virginm.net) (Ping timeout: 252 seconds)
2025-01-11 16:20:38 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 16:24:54 +0100 <mreh> trying to find some documentation on this bit of arrow syntax "proc ~pattern -> do" if anyone has a reference
2025-01-11 16:25:04 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 252 seconds)
2025-01-11 16:26:12 +0100 <mreh> oh is it just a lazy pattern match?
2025-01-11 16:26:39 +0100 <haskellbridge> <sm> So.. much.. syntax..
2025-01-11 16:33:13 +0100supercode(~supercode@user/supercode) (Quit: Client closed)
2025-01-11 16:33:37 +0100 <mreh> don't see them very often
2025-01-11 16:36:00 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 16:37:03 +0100Katarushisu(~Katarushi@finc-20-b2-v4wan-169598-cust1799.vm7.cable.virginm.net) Katarushisu
2025-01-11 16:37:09 +0100 <juri_> is anyone else here a user of the 'repa' library?
2025-01-11 16:37:27 +0100 <juri_> I don't have any questions yet, just looking for general opinions, as i wade in.
2025-01-11 16:39:25 +0100pavonia(~user@user/siracusa) (Quit: Bye!)
2025-01-11 16:40:22 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 244 seconds)
2025-01-11 16:44:31 +0100 <geekosaur> yeh, that's just a lazy pattern match, and indeed they're not used often. but when you need them, you really need them
2025-01-11 16:45:18 +0100 <geekosaur> there are other ways to do it (they're syntax sugar for an irrefutable match and a later lambda) but the lazy pattern match syntax is so much cleaner
2025-01-11 16:45:21 +0100 <mreh> This page was pretty clear https://wiki.haskell.org/Lazy_pattern_match
2025-01-11 16:46:34 +0100lisbeths(uid135845@id-135845.lymington.irccloud.com) lisbeths
2025-01-11 16:49:50 +0100 <mreh> I'm still not entirely clear how it applies to the arrow syntax though
2025-01-11 16:50:05 +0100 <mreh> these arrows aren't functions
2025-01-11 16:51:23 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 16:52:17 +0100 <mreh> e.g. https://github.com/tobbebex/GPipe-Core/blob/4f512f1ea6e6c32bbefaae1be38a68508337b1fa/GPipe-Core/sr…
2025-01-11 16:52:55 +0100lxsameer(~lxsameer@Serene/lxsameer) lxsameer
2025-01-11 16:58:18 +0100supercode(~supercode@user/supercode) supercode
2025-01-11 16:59:58 +0100tromp(~textual@92-110-219-57.cable.dynamic.v4.ziggo.nl) (Quit: My iMac has gone to sleep. ZZZzzz…)
2025-01-11 17:02:27 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 252 seconds)
2025-01-11 17:14:13 +0100machinedgod(~machinedg@d108-173-18-100.abhsia.telus.net) (Read error: Connection reset by peer)
2025-01-11 17:17:31 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 17:21:00 +0100machinedgod(~machinedg@d108-173-18-100.abhsia.telus.net) machinedgod
2025-01-11 17:22:01 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 252 seconds)
2025-01-11 17:23:04 +0100 <haskellbridge> <loonycyborg> What is the proper way to trigger TypeError from a type family? If I just try to return TypeError as a type ghc says that undecidable instances would be required.
2025-01-11 17:26:00 +0100 <geekosaur> that's not wrong, it follows normal rules and kinda by definition doesn't actually solve any types, so by said normal rules would normally lead to an infinite loop in the typechecker (except that it catches that specifically and aborts)
2025-01-11 17:27:03 +0100tromp(~textual@92-110-219-57.cable.dynamic.v4.ziggo.nl)
2025-01-11 17:29:09 +0100Digitteknohippie(~user@user/digit) Digit
2025-01-11 17:29:14 +0100michalz(~michalz@185.246.207.218)
2025-01-11 17:30:14 +0100 <geekosaur> one could argue that the loop checker that gets disabled with `UndecidableInstances` should recognize `TypeError` but I wonder how much extra work that would be
2025-01-11 17:30:35 +0100Digit(~user@user/digit) (Ping timeout: 265 seconds)
2025-01-11 17:32:53 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 17:33:39 +0100 <haskellbridge> <loonycyborg> Are there more granular ways of enabling Undecidable instances than module-wide?
2025-01-11 17:35:56 +0100 <geekosaur> no, and I suspect it would be problematic
2025-01-11 17:35:58 +0100 <int-e> I don't think so. (It's essentially a syntactic check... there's no change to how type checking operates outside of checking instance heads.)
2025-01-11 17:36:31 +0100 <haskellbridge> <loonycyborg> seems I can't fool it by attaching TypeError to Proxy or using it in Tagged
2025-01-11 17:37:25 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 244 seconds)
2025-01-11 17:39:59 +0100 <int-e> I personally never worry about enabling UndecidableInstances.
2025-01-11 17:40:23 +0100 <kaol> Dr. Strangelove and
2025-01-11 17:41:31 +0100DigitteknohippieDigit
2025-01-11 17:41:39 +0100 <int-e> It's really not so bad... the compiler can fail to terminate (in reasonable time!) for all sorts of reasons.
2025-01-11 17:41:48 +0100 <int-e> There are no fireworks.
2025-01-11 17:41:56 +0100 <monochrom> how I stopped worrying and love strange loops
2025-01-11 17:43:00 +0100 <monochrom> no fireworks? wait til your computer overheats :)
2025-01-11 17:43:24 +0100 <kaol> My experience with UndecidableInstances is that it can make code compile but it may paper over a design issue that will explode when you try to generalise the code more.
2025-01-11 17:44:01 +0100 <kaol> Or rather, try to add more instances of whatever you make one first.
2025-01-11 17:44:24 +0100 <int-e> odd
2025-01-11 17:45:12 +0100 <int-e> The scary extensions start with OverlappingInstances (which is a slippery slope leading towards IncoherentInstances which is the actually scary one)
2025-01-11 17:45:45 +0100 <kaol> It was a while ago, may have been some other IncomprehensibleExtension.
2025-01-11 17:46:03 +0100 <hellwolf> Per instance declaration of undecidable/ambiguous instances seem a recurring question, and it has open issues tracking it I believe
2025-01-11 17:46:04 +0100 <int-e> But I guess you can inadvertently make type checking expensive and UndecidableInstances makes that more likely.
2025-01-11 17:46:37 +0100 <int-e> We have dedicated per-instance pragmas for overlapping instances.
2025-01-11 17:46:42 +0100 <geekosaur> UndecidableInstances just says "don't exclude entirely valid programs because they can't be proven to terminate at type level"
2025-01-11 17:47:04 +0100 <int-e> Which makes sense, since that actually affects type-checking for users of those instances.
2025-01-11 17:47:18 +0100 <kaol> Sorry, I may not be adding anything to the discussion and it was very likely some other extension.
2025-01-11 17:47:19 +0100 <int-e> So the finer granularity bears fruits.
2025-01-11 17:47:27 +0100 <geekosaur> I think there are other limits to prevent things getting too out of hand? "let it loop" vs. "too many loops"
2025-01-11 17:48:16 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 17:48:17 +0100 <hellwolf> that's UndecidableSuperClasses ?
2025-01-11 17:48:56 +0100 <kaol> I mainly just write Haskell and add extensions when GHC tells me to. It seems weird but it works.
2025-01-11 17:49:06 +0100 <geekosaur> that's anything that can lead to looping, from type level to Core-Core passes
2025-01-11 17:50:12 +0100 <hellwolf> Though, at numerous times I could eventually eliminate the usage of UndecidableInstances; if it were used more freely, like what I do with ambiguous types, I might not pay the necessary attention to simplify things when there is opportunity of doing so.
2025-01-11 17:50:57 +0100 <hellwolf> that's why I would hope there is per instance declaration for them, that makes it more tamed.
2025-01-11 17:51:15 +0100 <hellwolf> I could be irrational though, as people pointing out that it should not be feared as much.
2025-01-11 17:52:42 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 252 seconds)
2025-01-11 17:55:19 +0100 <int-e> It certainly could be a per class thing but I don't think the demand for that is high. The extension is mostly harmless.
2025-01-11 17:56:32 +0100rynite(~bwkam@user/rynite) rynite
2025-01-11 17:57:27 +0100 <hellwolf> As this discussion usually lead to, that assessment of "harmless" is very inaccessible to all walks of Haskellers. I don't think it would be surprising that many are deterred by such an extension, and some might still think it's dangerous.
2025-01-11 17:58:06 +0100 <hellwolf> So, works still needed to clarify this. But we are repeating here... each time this topic brought up, it is the same dicussion :)
2025-01-11 17:58:54 +0100 <int-e> https://en.wikipedia.org/wiki/Phrases_from_The_Hitchhiker%27s_Guide_to_the_Galaxy#Mostly_Harmless
2025-01-11 18:00:53 +0100 <monochrom> IMO the conflicting experiences are due to conflicting understandings of, for example, what "instance Ord a => Eq a" means. One of the two understandings, the more popular one, is wrong, and it also leads you to misuse UndecidableInstances, and it still won't do what you think.
2025-01-11 18:00:54 +0100 <int-e> hellwolf: Literally the only thing that UndecidableInstances does is turn off the "The constraint ... is no smaller than the instance head ..." error.
2025-01-11 18:01:28 +0100 <hellwolf> I sorta understand. But not everyone is off type theory background to understand its implication...
2025-01-11 18:01:56 +0100 <monochrom> Whereas if you have the correct understanding, then you will find that, e.g., Data Types a la Carte needs UndecidableInstances and it is a correct use.
2025-01-11 18:03:06 +0100 <c_wraith> There are a lot of shapes of recursive data type that just need UndecidableInstances to write *any* instance for.
2025-01-11 18:03:17 +0100 <hellwolf> I think maybe we could even move it to a GHC warning, and GHC warning can be turned off per definition iirc.
2025-01-11 18:03:22 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 18:03:36 +0100 <int-e> Which is a check that I guess will save some beginners from doing certain stupid things. But in practice the implemented termination check is woefully naive and excludes a lot of instances where type checking terminates just fine.
2025-01-11 18:04:25 +0100 <int-e> Also accidental compile-time non-termination is far less scary than accidental runtime non-termination.
2025-01-11 18:08:01 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 248 seconds)
2025-01-11 18:10:33 +0100machinedgod(~machinedg@d108-173-18-100.abhsia.telus.net) (Ping timeout: 246 seconds)
2025-01-11 18:17:34 +0100acidjnk(~acidjnk@p200300d6e7283f90c8dc7c78c19bd00e.dip0.t-ipconnect.de) (Ping timeout: 252 seconds)
2025-01-11 18:18:45 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 18:23:34 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 272 seconds)
2025-01-11 18:24:00 +0100sim590(~simon@24-122-69-233.resi.cgocable.ca) (Ping timeout: 276 seconds)
2025-01-11 18:25:52 +0100acidjnk(~acidjnk@p200300d6e7283f90c8dc7c78c19bd00e.dip0.t-ipconnect.de) acidjnk
2025-01-11 18:26:46 +0100tromp(~textual@92-110-219-57.cable.dynamic.v4.ziggo.nl) (Quit: My iMac has gone to sleep. ZZZzzz…)
2025-01-11 18:30:12 +0100gmg(~user@user/gehmehgeh) (Ping timeout: 264 seconds)
2025-01-11 18:30:40 +0100econo_(uid147250@id-147250.tinside.irccloud.com)
2025-01-11 18:32:06 +0100gmg(~user@user/gehmehgeh) gehmehgeh
2025-01-11 18:34:08 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) merijn
2025-01-11 18:34:59 +0100tromp(~textual@92-110-219-57.cable.dynamic.v4.ziggo.nl)
2025-01-11 18:38:14 +0100rynite(~bwkam@user/rynite) (Quit: WeeChat 4.4.1)
2025-01-11 18:41:09 +0100merijn(~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 265 seconds)
2025-01-11 18:46:16 +0100 <haskellbridge> <Jade> hellwolf @irc_libera.chat_hellwolf:kf8nh.com: we don't have scoped warning enable/disable yet, there's a ticket which has been open for quite some time