<< 29-06-2016 >>
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01:45:39ftsf_\o/ start of my port of my game to nim is going well
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02:01:30ftsf_what does it mean when a proc takes a "foo: var baz" instead of just "foo: baz" ?
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03:04:48GangstaCatftsf_, passed by reference
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03:45:28ftsf_GangstaCat, I see, thanks! Without the var it's passed by value?
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03:46:55GangstaCatftsf_, yes
03:47:10ftsf_okay, great. thank you!
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04:01:44ftsf_ /o\ segfault during compile
04:01:59ftsf_SIGSEGV: Illegal storage access. (Attempt to read from nil?)
04:06:50veganskftsf_, use ``koch temp c`` to fugure out what happends if you build compiler from sources
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04:08:46ftsf_I'm using the archlinux packaged version of nim
04:08:57ftsf_does not seem to include koch
04:09:04vegansks/build/built
04:10:37veganskcan you show me the source?
04:12:40ftsf_sure https://gist.github.com/ftsf/5d5701494b14abfe1e4f4019867570b3
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04:19:55veganskhm, seems that the compiler crashes while trying to print error message.
04:20:28ftsf_interesting
04:21:26veganskYou error is in the line 17. It must be range[0..15], not range(0..15)
04:21:43ftsf_aha
04:21:53ftsf_thanks =)
04:22:38veganskBut still you need to file an issue with the minimal ``range(0..15)`` example
04:22:45veganskOk&
04:22:46vegansk?
04:22:57ftsf_sure, github issue tracker is the place?
04:23:06veganskyep
04:23:12ftsf_thanks
04:23:28veganskwelcome :-)
04:24:32veganskdom96, are you here?
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07:18:43veganskAraq, can you merge https://github.com/nim-lang/packages/pull/370 ?
07:19:26veganskThanks :-)
07:19:34Araqyou're very welcome.
07:20:05ftsf_yay got my nim app running in a browser via emscripten =) quite easy!
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07:52:05veganskftsf_, did you try js target in nim?
07:52:29ftsf_vegansk, i didn't yet
07:52:56veganskMaybe it will be easier :-)
07:55:03ftsf_have you tried it?
07:55:49ftsf_not sure the SDL wrapper works with the js backend
07:55:59ftsf_.nimble/pkgs/sdl2-1.1/sdl2.nim(1067, 20) Error: undeclared identifier: 'File'
07:57:49PMunchPretty sure it doesn't
07:57:51veganskyes, if you need sdl, emscripten is the solution. Also look at https://github.com/yglukhov/nimx
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07:58:27ftsf_I guess I could try to target canvas directly, but I'm not sure how I'
07:58:30ftsf_I'd go about that
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08:09:48PMunchftsf_, forum.nim-lang.org/t/2138
08:09:53PMunchThat might be of interest
08:11:02PMunchThat being said the earlier linked nimx thing does something similar
08:11:57fredrik92WEEEE!!! C# will have the underscore digit seperator that I love from Nim!!!!! :D
08:12:07fredrik92(in C# 7)
08:12:09ftsf_PMunch, thanks
08:12:52PMunchfredrik92, cool. That's one of those little things which makes code so much easier to read :)
08:14:12fredrik92Oh, yeah! When I started using Nim, that feature was really nice! (Still is!) thanks to whomever invented that one!!!!
08:14:42ftsf_I've never thought to use it... where is it useful?
08:15:14fredrik92in really big number literal!!
08:15:35ftsf_Hmm I guess I don't use those
08:16:32PMunchftsf_, basically the underscore character is ignored
08:16:43fredrik92E.g.: var myMagicMaxValue = 4294967295
08:16:45PMunchSo you can type numbers like this: 10_000_000
08:17:11fredrik92that one is evil! myMagicMaxValue = 4_294_967_295
08:17:15ftsf_yeah I see
08:17:28PMunchYou could of course also type things like this: 1_5_2__3434__3 but not sure why you'd want to do that :P
08:18:13fredrik92PMunch, in C#7 they'll have binary literals (with 0b0101010101), then you can group the bit section arbitrarily
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08:18:25fredrik92Btw, do we have binary literals in Nim?
08:18:31PMunchOh yeah, that would be helpfull
08:18:41PMunchOr grouping hex values two-by-two
08:18:45ftsf_0b01011 i think I saw it in the docs
08:18:48PMunchfredrik92, Nim actually has case and underscore insensitivity for names as well
08:18:50ftsf_yeah i can see it being useful there
08:18:58PMunchSo hello_world is the same as helloWorld
08:19:26PMunchOnly the first letter is case sensitive (so that you can have Data as a type and data as a variable for example)
08:20:56ftsf_does a leading underscore have meaning?
08:21:02ftsf_ahh invalid token
08:21:34fredrik92So not doing sth like Python there! :P (GREAT!!!)
08:22:47ftsf_ok, heading off, thanks for your help! o/
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08:24:44PMunchfredrik92, pastebin.com/dC59Ykt9
08:25:01PMunchBinary, hexadecimal, and octal literals are all in Nim :)
08:25:27fredrik92Cool!!!
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08:26:08PMunchnim-lang.org/docs/manual.html#lexical-analysis-numerical-constants
08:26:43PMunchAlong with int literals of various types (uint, 8/16/32/64 bit, etc)
08:26:49PMunchAnd float literals
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08:31:19yglukhovPMunch: hey i fixed your problem
08:31:30yglukhovnimble install -y nimsl
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08:31:49PMunchfredrik92, also exponential form: 2e+4 = 20000.0
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08:33:41PMunchyglukhov, oh cool!
08:33:46PMunchWhat was wrong?
08:34:50PMunchHmm, the colour wheen should really react to events outside of the circle..
08:35:01PMunchThought I was lagging big time there for a second
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08:37:03PMunchThe layout direction chooser in the Collections tab is also opposite of what it says
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08:38:00PMunchPlus I'm not 100% sure that the FPS number is accurate. It often reports 1 but the program still feels responsive
08:40:10yglukhovPMunch: nimsl was making too strict assumptions regarding nim installation. specifically it expected system.nim to be in lib folder. but in your case its not true
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08:41:42yglukhovPMunch: if youre gonna compile nimx for android, please also nimble install -y nimx. there has been a recent change in jnim lib...
08:42:21PMunchI was actually just about to try it :)
08:46:00PMunchpastebin.com/bpBBr3qt
08:46:01PMunchHmm, strange
08:46:46PMunchNot sure how it found SDL initially..
08:48:07PMunchfredrik92, you can even type things like: 0B0_10001110100_0000101001000111101011101111111011000101001101001001'f64
08:48:40fredrik92wait, binary literal for a double floating-point value?
08:49:16PMunchYup :)
08:49:23fredrik92kay... That one, i really don't see why you'd need it... But sure, whatever floats your boat (not pun intended)
08:49:33PMunchIn case you want to go slightly mad
08:49:47PMunchWhatever ints your boat
08:49:57fredrik92ouch!
08:51:31PMunchI can see int them being practical for the int types. So say 0b1010'i8 would create the number 10 as an int8
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08:51:52PMunchFor microcontroller programming and other low level stuff that could be really practical
08:52:35fredrik92PMunch, yeah sure, I just meant the binary literal for float and double!
08:52:55PMunchYeah, not sure where that would come in handy :P
08:53:26fredrik92I mean, honestly, how many of you can read IEEE standard double values in binary?
08:53:28PMunchI guess for debugging/educational purposes they might be practical. But otherwise I'm not too sure..
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08:53:59fredrik92When most of us (like me, oops) don't even get past being able to read simple hex!
08:55:02PMunchIt's nice to have though, makes the language more general purpose :)
08:55:14fredrik92Yeah sure!!!!
08:55:25Araqwe had this feature and I'm not sure if it's still in the language
08:56:58PMunchAraq, just tested it now and it still works
08:57:07PMunchIf you were talking about the floating point thing
08:57:45Araqyup.
08:57:53Araqso there you go, Nim has it.
09:01:18PMunchhttp://nim-lang.org/docs/manual.html#syntax-strong-spaces
09:01:20ftsfhello again! does nim have an equivalent of "extern int foo;" in C?
09:01:28PMunchOh wow, that would confuse me so bad :S
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09:03:09AraqPMunch: we'll remove it from the language, even though I still think it just makes sense
09:03:28Araqnobody uses it
09:03:55Araqeverybody is soo afraid that his code reflects operator precedences directly
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09:04:11PMunchAraq, I agree that it makes sense. And math with brackets can look super ugly. But if I didn't realize it was on then I would have a bad time..
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09:06:04Araqwell we can always turn it on then :P
09:06:23Araqbut it scares too many people.
09:07:02cheatfateIs it possible with nimble to make something like test installation, to be sure your package is working properly?
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09:07:14PMunchIs there anything like PEP for Nim by the way?
09:07:23AraqI like it when technology is driven by fearmongers... :P
09:07:52AraqPMunch: we have NEP-1 dealing with style issues
09:08:02Araqyou can create further NEPs.
09:09:22PMunchHmm, after using #? strongSpaces how do you disable it afterwards (sorry, might be obvious, haven't used parser directives in Nim before).
09:09:57Araqit's per module
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09:10:09Araqyou cannot disable it
09:10:26Araqnor use it for everything automatically
09:11:30PMunchAh okay
09:12:37PMunchWould be interesting to use it for those parts which included long and hard to read bracketed expressions without having to worry about breaking stuff elsewhere in code..
09:15:29PMunchFor constants coming from a C/C++ wrapper, ALL_UPPERCASE are allowed, but ugly. (Why shout CONSTANT? Constants do no harm, variables do!)
09:15:37PMunch^ From the style docs
09:15:50PMunchI now want to try and write code with VARIABLES
09:16:00PMunchJust to see how it would look
09:26:02PMunch"In the age of HTTP, [...], WWW it is foolish to pretend these are somewhat special words requiring all uppercase." - again from the style docs. While I don't disagree with the styling convention these are special words as they are abbreviations.
09:26:04hendiIs it possible for nimble to also run tests? to make sure the installed package works as intended?
09:26:17ldleworkCan't you do that before uploading it?
09:27:11PMunchldlework, some tests might be architecture dependent
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09:28:42hendiI mean, if I install some random package, I'd like to run its tests
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09:31:14PMunchhendi, nothing automated in nimble as far as I know. You could run them manually though if they are supplied
09:33:24hendiokay, I'll do that then.. thanks
09:33:45Araqhendi: http://ci.nim-lang.org
09:34:01Araqhttps://134-60803270-gh.circle-artifacts.com/0/home/ubuntu/nim-ci/output/nimble_install_report.html
09:34:09Araqjust check your package there
09:35:49PMunchIs that site available in a machine readable format?
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09:41:59elroodlooks pretty machine-readable to me. it has some extra </td>-tags to confuse the hell out of your html-parser of choice, though
09:44:19PMunchelrood, I meant something that was meant to be machine readable and wouldn't change if someone decided it would be fun to add some more content to the site
09:44:37PMunchie. a simple JSON or XML output
09:44:53PMunchOr even just a csv
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09:50:22AraqPMunch: ask federico3 when he's around
09:50:35PMunchWill do, thanks :)
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09:52:13yglukhovPMunch: with ANDROID_HOME i'm not sure how to help. except adding some log to naketools line 109 - 146. be sure to remove nakefile after every naketool modification, and note that nakefile searches for naketools in installed nimble packages.
09:53:00PMunchHmm, I'll look into it later
09:57:40Araqbbl
10:03:56bacteriusis it possible to use a codegenDecl pragma on types somehow? it doesn't seem to work
10:04:49bacteriuslike in C you can set __attribute__((...)) on types like alignment or other and it'll apply to any instances of it
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10:38:02ftsfwould there be a way to make a float type that will automatically convert into an int when it's necessary?
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10:47:39PMunchftsf, just create a converter
10:48:16ftsfoh, *looks up converter*
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10:48:54PMunchnim-lang.org/docs/manual.html#converter_1
10:50:03ftsfawesome =)
10:50:21PMunchVery practical for C wrappings
10:50:22ftsfthat saves a heap of useless coding
10:50:34PMunchYup :)
10:54:19ftsfhmm I guess there's no way to see if an object has a method, because objects don't have methods
10:54:24ftsf(at runtime)
10:58:06cofeepotI think you can use compiles(obj.mymethod)
10:59:41cofeepottho that's not runtime i guess
11:00:22ftsfmmm sounds not, that's cool. gotta get used to not using a dynamic typed language =)
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11:00:40ftsfbeen using python and lua too long
11:01:17cofeepotit is a different way of thinking, but i think you can do the same things, ultimately :)
11:01:45ftsfyep, just define the method on all the objects with no implementation if it's not needed
11:02:04cofeepotalso you can use http://nim-lang.org/docs/manual.html#generics-concepts
11:03:32ftsfmmm sounds like an interface?
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11:04:00PMunchhendi, federico3 just added a JSON version of the build report: https://136-60803270-gh.circle-artifacts.com/0/home/ubuntu/nim-ci/output/nimble_install_report.json
11:04:17PMunchSo you could automate the check now :)
11:04:39cofeepotftsf: sorta, but interfaces are usually run time, whereas this is compile time
11:04:58ftsfoh okay =)
11:05:10PMunchAnother option would be to store methods for a certain object in a list
11:05:20PMunchIf you need it for one specific thing
11:05:25ftsf*nods*
11:05:50ftsf\o/ everything is working so nicely now
11:05:56cofeepotyeah you can make something closer to run time interfaces with closures from what i understand
11:06:05ftsfmy game works and exports to html =)
11:06:09ftsfso happy!
11:06:20cofeepotcongratulations! :D
11:06:55PMunchCool!
11:07:15PMunchHTML5+JS?
11:07:20ftsfyep
11:07:35ftsfhttp://static.impbox.net/vector/vector.html Z to accel, X to brake, UP to boost =)
11:09:16cofeepotvery cool!!
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11:12:37ftsf=)
11:14:02PMunchMuch cooler when I realized Left/Right turned you :P
11:14:06ftsfhaha
11:14:09ftsfforgot to mention those controls
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11:16:47PMunchSo it is using a HTML5 canvas and direct JavaScript control?
11:17:38ftsfyep
11:21:16PMunchCool
11:22:15PMunchSource?
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11:45:58ftsfbased on https://github.com/nim-lang/sdl2/blob/master/examples/sdl_skeleton.nim
11:47:58PMunchAnd that runs in HTML5/JS?
11:48:13ftsfif you compile with emscripten
11:48:28ftsfhttps://hookrace.net/blog/porting-nes-go-nim/
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11:51:00PMunchBut but but
11:51:07PMunchHow does the SDL stuff work?
11:51:13ftsfmagic!
11:51:16ftsfI dunno
11:51:43PMunchWait, is SDL being compiled to emscrpiten?
11:52:23ftsfyep
11:54:25flyxwell it isn't surprising as people also have compiled OpenTTD to JavaScript.
11:55:07PMunchWhat is this madness! :S
11:56:43flyxI heard it has something to do with Sparta
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12:11:43ftsffor y in countup(player.pos.y-64, player.pos.y+64, step=16): gives lib/nim/system.nim(1891, 9) Error: for a 'var' type a variable needs to be passed
12:11:56ftsfdoes countup require vars?
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12:21:16PMunchnim-lang.org/docs/system.html#countup.i,S,T,int
12:21:20PMunchDoesn't seem like it
12:21:39ftsfS and T are just any type right?
12:21:56ftsf"may be any ordinal type"
12:21:56PMunchYou don't have to include "step=" by the way (is it even allowed?)
12:22:09ftsfseems to be
12:24:52chemist69Hi, since many people here have mentioned converters, I wanted to try them out, but immediately ran into an error: "for a 'var' type a variable needs to be passed". Can s.o. tell me why this minimal example does not compile:
12:25:09chemist69https://glot.io/snippets/eg2vre2fmu
12:26:15ftsfchemist69, same error I am getting
12:26:18ftsfwith countup
12:26:21ftsfand I am using converters
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12:26:36chemist69yes, me too.
12:26:59PMunchchemist69, got a copy/pastable version of that?
12:27:27chemist69doesn't the glot.io link work?
12:27:39ftsfc/p works for me
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12:28:34PMunchWell, I can copy paste but it refuses to allow Linux' middle mouse copy/paste
12:29:53chemist69you're right, that does not seem to work
12:31:25PMunchHmm
12:33:26chemist69do you 'Hmm' to the copy/pasting issue or to the compilation error ? :)
12:33:39PMunchThe compilation error
12:37:13kierdoes it work if you use a named variable instead of '_'?
12:37:19kieri.e. for i in countup(...):
12:37:29kierno idea if that will fix it, just curious
12:37:29ftsfkier, nope
12:37:31chemist69no, same error
12:37:55kierodd. does it work without the converter?
12:38:23ftsfkier, yep
12:38:23chemist69no, gives type mismatch: got (float64, int)
12:38:59chemist69no, it does not work without the converter!
12:39:21kieri mean if you replace 4.1 with 4 or something
12:39:28kierso that it won't cause a type error
12:40:19chemist69yes, then it runs.
12:40:24kieri'd recomend raising this as an issue, if only because the error message doesn't seem to be relevant to the cause of the error
12:41:09PMunchIt also works if you do countup(1,4.3.toInt)
12:41:35PMunchSo I'm guessing this is actually an issue
12:42:08chemist69Great, every time I test something, it becomes an issue... :)
12:42:22ftsf^_^
12:42:26kieryeah. either your should compile (in which case there's a compiler bug blocking it from compiling) or it shouldn't compile (in which case the error message could be improved)
12:42:30ftsfthat's what happens when you use new software
12:42:36kiers/your should/your code should/
12:48:47chemist69issue submitted: https://github.com/nim-lang/Nim/issues/4431
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12:57:23ftsfhmm can I disable XDeclaredButNotUsed for a module that I'm using as a library?
13:04:16cheatfateftsf, and which one is producing it?
13:04:22cheatfatefrom standard library?
13:04:28ftsfcheatfate, no my own library
13:05:02cheatfateyou need to resolve your XDeclardButNotUsed, then :)
13:05:37ftsfcheatfate, no... it's a library, it's not expected to use all the functions
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13:06:31cheatfateftsf, there you can make public function with `*
13:06:33cheatfate`*`
13:07:06ftsfpublic function won't complain about that?
13:07:06cheatfatethen XDeclaredButNotUsed will not be fired on this function
13:07:09ftsfahh cool
13:07:10ftsfthanks
13:08:52cheatfateftsf, http://nim-lang.org/docs/manual.html#procedures-export-marker
13:08:59ftsfhmm I was `include`ing the library rather than importing it, because it requires access to a global from the including module
13:09:13ftsfI'm not sure how to access that in the library if it's imported
13:09:22ftsfequivalent of `extern` in C
13:09:52ftsfhmm maybe I know a way around it
13:14:35PMunchpastebin.com/y8y2z9A8
13:14:46PMunchThat's an example of what fails
13:15:19PMunchFor the converter problem
13:15:35PMunchIt definitely looks like an issue
13:18:00chemist69okay...
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13:40:53chemist69would you like to add your code to the issue on github (#4431)?
13:41:39PMunchIt's pretty much just an extract of the system.nim library functions and some realization of the template
13:41:54PMunchI was just trying to see if it was actually an issue or not
13:44:02chemist69I see.
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13:51:17yglukhovi remember someone has done a super(T) macro some time ago. does anyone know where i can find it?
13:51:21yglukhovAraq
13:53:41fvsis nim discard == python pass?
13:53:49yglukhovnevermind, found it. if anyone interested https://gist.github.com/fowlmouth/3c74409c30533bb0a5b4
13:54:31ftsffvs, it can do that!
13:54:37ftsfit does otherthings too
13:54:42fvslike nop
13:54:53ftsfand ignore return
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14:13:58fvsdoes nim have a function to convert "['a','b']" to seq[char] e.g. pythons's ast.literal_eval?
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14:17:50PMunchYou have parseStmt
14:17:54PMunchnim-lang.org/docs/macros.html#parseStmt,string
14:18:10PMunchTakes a string and returns a Nim AST node
14:18:20PMunchUsed in macros
14:18:29PMunchfvs, ^
14:18:42PMunchBut I doubt there is anything runtime
14:20:00PMunchShort of parsing it yourself obviously
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14:21:52fvsthks
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14:37:07ftsfexpression 'normalize(diff)' has no type (or is ambiguous) but diff is a Vector2d http://nim-lang.org/docs/basic2d.html#normalize,Vector2d
14:37:12ftsfany idea why that error would happen?
14:39:08cheatfatedom96, ping
14:43:50ftsfoh I was doing foo = diff.normalize() but normalize operates in place
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15:14:31ftsfcan you return multiple values?
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15:25:02kierftsf: only by returning a tuple
15:25:17ftsfahh I see
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16:21:27ftsfanyone know how to specify infinity/-infinity for floats?
16:22:26kierftsf: http://nim-lang.org/docs/system.html#Inf
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16:23:06ftsf\o/ thanks!
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20:11:39cheatfatedom96, are you here?
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22:08:51cheatfatezielmicha, i saw in your reactor.nim readme.md this phrase "They are arguably richer and more performant". I'm totally agree with "richer", but can you give some proofs of "more performant"?
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22:09:53cheatfatezielmicha, could you please make a copy of asynchttpserver.nim using reactor.nim so we can compare performance of both...
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22:32:45dom96cheatfate: stop pinging me and just ask.
22:32:50dom96Please
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22:34:53cheatfatedom96, couldn't find any information how to check (not published) nimble package.
22:35:17dom96cheatfate: The reason you should just ask if that others might know the answer to your question.
22:35:26dom96This is especially the case regarding Nimble.
22:35:40dom96*is that
22:35:58dom96I don't understand what you want to do though
22:36:05dom96check? as in test?
22:36:24cheatfatedom96, i want to check my package configuration (make local installation)
22:36:39dom96cheatfate: cd into the package directory and type 'nimble install'
22:36:40cheatfateto see if everything works fine
22:37:31cheatfatethank, you and also, i'm waiting for this answer for 2 days... (its about pinging, asking question and all other problems you are trying to blame me)
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22:40:04sp33der89Anyone knows if the Urho3D nim port works with the latest nim version? Or should I go ahead and try it out myself!
22:43:29sp33der89Well I guess since it uses c2nim mostly it should be
22:58:50dom96sp33der89: no idea, sorry. Indeed, it is best to test it yourself :)
22:59:20dom96cheatfate: did you ask it or did you just start by pinging me?
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23:03:07cheatfatedom96, [Jun 29 12:07:03 <cheatfate> Is it possible with nimble to make something like test installation, to be sure your package is working properly?]
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23:04:00dom96cheatfate: fair enough, if that happens again you might have better luck asking on the Forum.
23:05:29cheatfatedom96, it looks like my `questions limit` is exceeded, this was my last question
23:05:45dom96questions limit?
23:05:49dom96There is no such thing
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23:29:16sp33der89no problem, I was surprised to find a WIP port of it anyway!
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23:43:32vktecHow can I import a C struct using FFI?
23:51:13vktec(I'm writing a wrapper, and some of the functions return a struct type, so I need a way to use that from within Nim)
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