<< 11-02-2019 >>
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02:11:08FromGitter<brentp> @arnetheduck ( and Araq) : https://github.com/brentp/slivar/blob/dev/src/slivarpkg/siset.nim ⏎ if anyone wants to take that over/contribute, I'll pull it out to separate package. I just hacked it together instead of getting real work done and it's fast enough for now. ⏎ it's using the bitops package for pop count and trailing zeros.
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02:37:12FromGitter<brentp> the intersection gets much faster using a fixed-sized array and a length instead of a seq, but that's less flexible.
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04:02:41quantum2020how does one contribute to nim?
04:02:50quantum2020ie_ help with documentation etc.
04:05:14FromDiscord_<juan_carlos> Contribute Documentation list of stuff to do here: https://github.com/nim-lang/Nim/issues/10330#issue-399758328
04:10:01quantum2020thanks
04:12:58FromDiscord_<juan_carlos> No problem, feel free to ask questions.
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04:34:08quantum2020is Nim in Action still a relevant book?
04:41:07FromDiscord_<juan_carlos> Yeah.
04:42:33quantum2020thanks Juan will read
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10:15:16FromDiscord_<juan_carlos> is the `` of asm bugged?. https://pastebin.com/tqTKcv8T
10:16:17FromDiscord_<juan_carlos> Using a literal integer it works ok, with the `` fails.
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10:24:35FromGitter<mratsim> @juan_carlos: works for me here: https://github.com/status-im/nim-constantine/blob/master/constantine/private/word_types_internal.nim#L16-L37
10:25:32FromGitter<mratsim> but I'm directly associating with registers, I don't know about immediates
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10:30:18FromDiscord_<juan_carlos> Maybe I dont understand how it works, I was thinking it kinda replaces the value in-place on the string and than passes it to asm statement.
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10:36:40Araqthat's what it does, yes
10:37:04Araqdon't use asmNoStackFrame
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10:37:51AraqasmNoStackFrame is for when you need to circumvent the calling convention
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11:57:07FromGitter<mratsim> By the way @alehander42 regarding comprehensions, you might like transducers and catamorphisms http://sixty-north.com/blog/deriving-transducers-from-first-principles.html and https://medium.com/@olxc/catamorphisms-and-f-algebras-b4e91380d134
11:57:27FromGitter<mratsim> cc @timotheecour, I'm pretty sure it relates with D-ranges as well
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13:32:10FromGitter<mratsim> interesting too in that vein: https://yanniss.github.io/algebras-ecoop15.pdf
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15:45:58FromDiscord_<moerm> hello, Nimmers
15:47:02Araqhi
15:47:46FromDiscord_<moerm> I hate it when someone asks for help and doesn't provide all relevant info. grr.
15:48:45FromGitter<mratsim> Don't work at a support desk then
15:48:58FromGitter<mratsim> that happens 80% of the time.
15:49:14FromDiscord_<moerm> Hehe (I don't. But I try to help in our forum whenever I have a little time)
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15:51:07FromGitter<mratsim> I did and nothing like a trader calling you and telling you "it does not work, and all is going to hell in 5 min".
15:51:26FromDiscord_<moerm> Do I get it right that being at 19.9 means that 20.0 isn't far away and we're getting close to 1.0?
15:52:04leorizeyea, 19.9 means development version that will become 20.0
15:52:57narimiran@moerm correct, for some arbitrary definition of "close" :)
15:53:07FromDiscord_<moerm> mratsim I one worked for a big system house and I've heard about those cases. Like people saying "It doesn't work. What's wrong?" and no matter how hard you try you just don't get any reasonable information from them
15:53:53FromDiscord_<moerm> narimiran That's very, very, nice! I love to hear that
15:53:54FromGitter<mratsim> Actually in Finance it's not so bad because there is money and downtime has a very visible price so people do not sit around in meetings.
15:55:36FromDiscord_<moerm> I try to stay away as far as any possible from *end user* support anyway, no matter the area. But here (in our forum) I try to help when I can because it's colleagues and I (probably stupidly) expect a reasonable information level
15:56:54FromGitter<mratsim> just wait until Nim becomes popular and people coming are less patient (i.e. what happens/happened in technically involved distros like Gentoo or Arch)
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15:57:22FromDiscord_<moerm> Now I have ugly pictures in my head ...
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15:58:52leorizemratsim: Gentoo users are unlikely to be impatient imo :P
15:59:06FromGitter<mratsim> that's true :p
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15:59:58narimirancan we also have arch-like wiki?
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16:00:35FromGitter<mratsim> we can, that requires tremendous effort when starting
16:01:23FromGitter<mratsim> but if the search is good that's super helpful
16:01:26leorizewell, maybe we should improve the github wiki as a start?
16:02:11FromGitter<mratsim> Github wiki is quite poor tbh (not talking about our wiki specifically but as collaborative tool)
16:02:35narimiranleorize: yes, please
16:04:19leorizemratsim: any specific reasons?
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16:05:22FromGitter<mratsim> search
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16:07:27leorizemratsim: you can search with the normal github search
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16:08:36FromGitter<mratsim> You have lots of extra clicks when you're looking into somethign in the wiki specifically with Github search.
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16:09:14FromGitter<kaushalmodi> could be a major issue if we sink deep into the Github wiki system: it's not mobile friendly
16:09:37FromGitter<kaushalmodi> when you visit Github repos on mobile, the Wiki tabs don't even show up
16:09:57FromGitter<kaushalmodi> you can do "show as desktop" but then the wikis are very unwieldy to access
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16:10:22FromGitter<mratsim> Images in the wiki are also a huge pain.
16:10:59FromGitter<mratsim> right now I'm uploading images to a gist and then embed them with markdown link, it takes me 1 min at minimum
16:12:21FromDiscord_<moerm> ... "Github"? Strongly Opposed!
16:12:35FromDiscord_<moerm> If we want a wiki let's have our own
16:14:09FromGitter<mratsim> Yes, ownership and ease to backup/get out of the walled garden is also an issue.
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16:16:23FromGitter<mratsim> Github provides 2 strong advantages: Nim and many other languages syntax highlighting, and no hosting. There is also versioning using git (instead of database hacks) and most likely being spam-free.
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16:18:26FromGitter<mratsim> Our own wiki would have better search, not tied to a service, maybe better SEO/discoverability as well (most Linux questions have the Archwiki in the first page), better mobile layout.
16:20:15FromGitter<mratsim> Also it could grow and gather, tutorials, cookbooks, Nim history, internals with category/related sections without polluting the sidebar with all existing pages.
16:20:31FromGitter<mratsim> oh and images without pains
16:20:58narimiranand the most likely scenario? everything will stay as it is :'(
16:22:22FromGitter<mratsim> I don't mind helping with content on a new non-Github wiki.
16:25:27FromGitter<kaushalmodi> I can help with the content too (port most of my notes) if the wiki accepts Markdown
16:26:11FromGitter<kaushalmodi> but I am not used to using wikis, just Hugo static site generator
16:26:12CalinouGitHub wikis can easily be cloned locally, they aren't walled gardens really
16:26:21Calinougit clone https://github.com/organization/repository.wiki.git IIRC
16:26:24Calinou(add .wiki)
16:26:32FromGitter<kaushalmodi> Calinou: yep, that's correct
16:26:42Calinouso you can browse them offline and mirror them all you want :)
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16:30:44FromGitter<Vindaar> @Araq: here you go: https://github.com/nim-lang/Nim/pull/10637 Like I said, a little hacky (:
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16:49:33FromGitter<Varriount> @Vindaar Unfortunately, you still have to use Marshall for anything really large, due to the VMs loop limit
16:51:56Zevvimho the problem with wikis about subjects-in-flux such as Nim is page rot: tons of out of date pages with no ownership which will confuse users. For example, Lua has a sweet little wiki, of which two thirds does no longer apply to the latest version
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16:55:38shashlickhow do I get the stack trace for a nim dll crash
16:56:00shashlicki can catch the exception but there's no details
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17:00:34narimiranhas anybody used `osproc.startProcess`? i'm experiencing some strange issues with it
17:00:47narimiranthis one: https://nim-lang.github.io/Nim/osproc.html#startProcess%2Cstring%2Cstring%2CopenArray[string]%2CStringTableRef%2Cset[ProcessOption]
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17:06:47FromGitter<wasupwithuman> hi, nimnoob here, I had a question regarding the different types (object, ref). I bought the book nim in action. It stated that types created with the object keyword are created on the stack and ref are heap allocated, but when printing the repr() on both, the memory addresses are in the same area
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17:07:21FromGitter<wasupwithuman> am I missing something, or is the address printed by repr() not the actual location address?
17:09:55FromGitter<Vindaar> @Varriount yes, I know. That was one of the reasons I didn't pursue this much further. I increased the limit, but then just realized it's way to slow for what I was trying
17:10:07FromGitter<Vindaar> *too
17:12:14leorizewasupwithuman: can you give me some example code?
17:13:22FromGitter<wasupwithuman> `type ⏎ ⏎ ```Person = object ⏎ name: string ⏎ age: int ⏎ sex: Sex ⏎ PersonRef = ref Person``` ⏎ ⏎ var sam = Person(name: "Sam", age: 30) ... [https://gitter.im/nim-lang/Nim?at=5c61ad325095f6660cd7c29b]
17:13:31FromGitter<wasupwithuman> well that's not code
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17:17:06FromGitter<mratsim> you should repr sam and tasha, not their field
17:17:31narimirani think i solved the above problem with passing `poUsePath` to `options` parameter. i've lost too much time and nerves on that....
17:17:45FromGitter<mratsim> when you repr tasha's field it probably dereferences it and put it on the stack
17:18:53FromGitter<wasupwithuman> oh roger
17:19:16FromGitter<mratsim> ah no
17:19:23FromGitter<mratsim> string are heap allocated
17:19:30FromGitter<mratsim> that's why you see the same area
17:19:55FromGitter<mratsim> repr doesn't dereference and put on the stack
17:22:28FromGitter<deech> I'm pretty sure I'm missing something in the Nimble manual but how do I specify executable dependencies, eg. ensure `make` is in the path in some cross-platform way.
17:24:31FromGitter<mratsim> I don't think that exists
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17:36:56FromGitter<deech> Ok thanks!
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17:39:49leorizedeech: http://nim-lang.github.io/Nim/nimscript#findExe%2Cstring
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18:01:17FromGitter<deech> leorize: Thanks!
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18:10:37FromDiscord_<juan_carlos> You can try find it and put {.warning.} when the executable is not found.
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19:00:52FromGitter<Varriount> Anyone know if there is a way to enable compiler optimizations for a single module?
19:01:37FromGitter<Varriount> My module makes use of nimcrypto, and tends to run incredibly slowly if the C compiler hasn't had optimizations enabled for it.
19:07:50FromDiscord_<moerm> Varriount: *Theoretically* from what I know push - passC <what you need> pop pragmas. Practically the switches one passes via passC are used for *all* modules it seems (at least as per 19.2 - maybe changed by now)
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19:11:30Araqmodulename.always.options = "-O3"
19:11:33Araqiirc
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19:18:49FromDiscord_<moerm> Side note: >Do *not* simply use O3 for crypto. It's almost always better to finetune the flags instead of the O3 hammer
19:19:03FromGitter<brentp> error messages are still linking to: https://nim-lang.org/docs/manual/var_t_return.html, which does not exist
19:21:07FromGitter<mratsim> @Varriount example: https://github.com/numforge/laser/blob/master/nim.cfg (this is completely undocumented)
19:25:01narimiran@brentp here is the correct link, i think: https://nim-lang.org/docs/manual.html#procedures-var-return-type
19:37:29FromGitter<brentp> @narimiran cheers
19:42:11FromGitter<Varriount> @mratsim Thanks!
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20:32:37FromDiscord_<moerm> see you
20:37:25FromDiscord_<Geroro / Grey Ghost> Hi All! What's the best way to save a struct to a file and restore it later in nim?
20:37:53Zevvdepends on your definition of "best"
20:38:31FromDiscord_<Geroro / Grey Ghost> true, what is the nim way?
20:38:46ZevvI'd say: json
20:39:11Zevvif you want it fast and unsafe, just dump the binary contents.
20:39:31FromDiscord_<Geroro / Grey Ghost> I'll keep it safe, haha, thank you :)
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21:46:02zestyr~
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21:47:29hagnaSo proc main(argc: cint, argv: cstringArray): cint {.importc.} doesn't seem like the right way to declare int main(int argv, char* argv[]). Do you know what is?
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22:13:59FromDiscord_<exelotl> `argv: ptr UncheckedArray[cstring]` maybe?
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22:47:56FromDiscord_<Geroro / Grey Ghost> can I have a procedure that returns different types?
22:50:27FromDiscord_<Geroro / Grey Ghost> I am blind, its <any>, I looked for 20 minutes and couldn't find it
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22:55:33FromDiscord_<juan_carlos> auto ?
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22:58:44FromDiscord_<Geroro / Grey Ghost> that looks better than any, thank you
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