companion_cube changed the topic of #ocaml to: Discussion about the OCaml programming language | http://www.ocaml.org | OCaml 4.12 released: https://ocaml.org/releases/4.12.0.html | Try OCaml in your browser: https://try.ocamlpro.com | Public channel logs at https://libera.irclog.whitequark.org/ocaml/
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<Boarders> is there an easy way in ocaml to compare two hashtables for equality in the sense of having the same keys and values?
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<d_bot> <Swerve> I don't know of any built-in way, but something like this might work: https://pastebin.com/iENePd9R
<Boarders> thanks, I'll give that a go, the core one also seems to include a useful equal function
<Boarders> is there any good resource that people know giving a bunch of exercises to understand aspects of the module system?
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<d_bot> <raedr7n> Hey, does someone want to let me bounce an idea off them real quick? I'm looking at developing a reasonML-like syntax over ocaml, but I have a couple questions about the viability of exposing a limited subset of the language. This would mostly be an educational excercise/for fun.
<companion_cube> it's very doable to expose only a subset of the language, yes
<d_bot> <raedr7n> It seems like that would probably prevent the use of many ocaml libraries by programmers of the language. I don't really care about that, but do you think people in general would?
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<d_bot> <raedr7n> You know, nevermind.
<d_bot> <raedr7n> I don't think I really care what people would think.
<companion_cube> well, if it's like reason, you could mix syntaxes.
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<neiluj> Hello! If using a bytes ref, and writing bytes on it, it allocates enough memory for the bytes?
<neiluj> And if you're appending new bytes?
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<octachron> Using a bytes ref seems strange since `bytes` is already mutable. And no, bytes are not resized dynamically, out-of-range accesses are an error.
<neiluj> thanks octachron
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<companion_cube> bytes ref + int ref makes sense though
<companion_cube> or a record with these as mutable fields; it's basically a `Buffer.t`
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<neiluj> indeed
<neiluj> I went with a mutable field bytes in the record
<neiluj> it reallocates memory each time
<neiluj> but I didn't find a way to "memcopy" bytes
<companion_cube> Bytes.blit
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<companion_cube> hmm you shouldn't need to reallocate every time though
<neiluj> oh indeed, many thanks
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<d_bot> <tars0x9752> Hi, I made a tiny VSCode Extension which provides auto-completion for .ocamlformat file. Idk if any of you need this but let me post it here. (...btw I'm a complete beginner so this is written in TS. If I became comfortable with OCaml and its ecosystems, I'd like to re-write this in OCaml. But, as of now I have no clue. 🙃 )
<d_bot> <tars0x9752>
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<d_bot> <undu> wow, that's really nice, thanks for enriching ocaml!
<d_bot> <thangngoc89> @tars0x9752 very nice
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<d_bot> <argent_smith> hi ppl, I've recently found some strange typr
<d_bot> <argent_smith> Hi ppl. Recently I've found osme strange type annotations in VSCode (I use OCaml Labs' OCaml Platform) — type2/
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<d_bot> <octachron> Normally this means that there is multiple types named `string` in scope `string/2` means the second type named string.
<d_bot> <NULL> This minimal example should illustrate well
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<d_bot> <Swerve> In using dune with Js\_of\_ocaml, the docs say to run `dune build ./foo.bc.js` if I want to compile `foo.ml` to javascript. Then I use `node <path\_to\_file>/foo.bc.js` to run foo. What is the `.bc.js` extension for?
<d_bot> <Swerve> Also, If I want to use the js code generated as a script in an html page, should I refer to it as `foo.bc.js`, or as `foo.js`? Any info would be super helpful.
<d_bot> <thangngoc89> @Swerve it's a convention of dune
<d_bot> <thangngoc89> `exe` for executable
<d_bot> <thangngoc89> `bc` for bytecode
<d_bot> <thangngoc89> `bc.js` for jsoo build
<d_bot> <Swerve> Can I treat `bc.js` like I would treat `.js`?
<d_bot> <thangngoc89> yes
<d_bot> <thangngoc89> just treat it like any js file
<d_bot> <octachron> (Maybe don't try to read it)
<d_bot> <thangngoc89> ^ this
<d_bot> <thangngoc89> treat it like a black box. lol
<d_bot> <Swerve> Yeah the error messages are really not easy to decipher I've found
<d_bot> <octachron> You can see the`bc.js` as a sign that this a compiled-to-js file rather than a js source file.
<d_bot> <Swerve> Gotcha, thanks for the info!
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<d_bot> <psteckler> Has anyone using the Jane St libraries noticed that long-running code leaks pipe descriptors (FIFOs)?
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<d_bot> <Deadrat> How did you find the leakage?
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<d_bot> <psteckler> a user reported the output of `lsof`
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