#ocaml on 2021-10-30 — irc logs at libera.irclog.whitequark.org

2021-09-27 14:53 Leonidas changed the topic of #ocaml to: Discussion about the OCaml programming language | http://www.ocaml.org | OCaml 4.13.0 released: https://ocaml.org/releases/4.13.0.html | Try OCaml in your browser: https://try.ocamlpro.com | Public channel logs at https://libera.irclog.whitequark.org/ocaml/

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00:15 <d_bot> <RegularSpatula> what about `cat packages.txt | xargs opam uninstall`?

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07:48 <d_bot> <antron> does ocaml platform work on wsl at this point?

07:49 <d_bot> <antron> i've installed the vscode extension, `ocaml-lsp-server` and `ocamlformat` in my local switch. the extension had me select the toolchain. i restarted vscode. ocaml platform doesn't appear to be able to even toggle ml/mli

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08:08 <d_bot> <antron> ah, it looks like lsp is mostly or at least somewhat working 🙂 i'll open an issue about the ml/mli thing

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18:42 <d_bot> <Mukal> I installed base a few hours ago but couldn't use it, anybody could pin point the reason why?

18:42 <d_bot> <Mukal>

18:42 <d_bot> <Mukal> Installed base :

18:42 <d_bot> <Mukal> ```

18:42 <d_bot> <Mukal> opam install base

18:42 <d_bot> <Mukal> ```

18:42 <d_bot> <Mukal> Open utop and type open base:

18:42 <d_bot> <Mukal> ```

18:42 <d_bot> <Mukal> opam exec utop

18:42 <d_bot> <Mukal> ----utop interface----

18:42 <d_bot> <Mukal> utop # open Base ;;

18:42 <d_bot> <Mukal> Error: Unbound module Base

18:42 <d_bot> <Mukal> ```

18:47 <d_bot> <RegularSpatula> Did you `#require “base”;;` first?

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18:47 <d_bot> <Mukal> No I didn't the tutorial didn't tell that, let me try

18:48 <d_bot> <Mukal> Yep it works now, thank you 🙂

18:49 <d_bot> <RegularSpatula> No problem!

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21:27 <d_bot> <gabenpls> is there a channel here to discuss compilers?

21:28 <d_bot> <NULL> Not in the Discord, but I think there is in the IRC

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21:30 <d_bot> <gabenpls> ok ty

21:32 <d_bot> <gabenpls> i wonder if we can ask the mods to create a channel for that here. would be nice

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22:14 <d_bot> <rbjorklin> For working with base/core you might find this useful: https://dev.realworldocaml.org/install.html#utop-setup

22:15 <d_bot> <Mukal> I'm actuallly following that very book

22:15 <d_bot> <Mukal> Although there are some codes that are not working/different in mine

22:15 <d_bot> <Mukal> Which makes me wonder

22:16 <d_bot> <Mukal> One is for **. for me it returns an error. The book says it's for float but for me 2 stars without the dot is for float

22:16 <d_bot> <Mukal> And for snippets that have ```~f:``` it returns an error also

22:24 <d_bot> <rbjorklin> These behave the same for me:

22:24 <d_bot> <rbjorklin> ```ocaml

22:24 <d_bot> <rbjorklin> utop # 2. ** 8.;;

22:24 <d_bot> <rbjorklin> - : float = 256.

22:24 <d_bot> <rbjorklin> >──────────────────────────

22:24 <d_bot> <rbjorklin> utop # Float.pow 2. 8.;;

22:24 <d_bot> <rbjorklin> - : float = 256.

22:24 <d_bot> <rbjorklin> ```

22:26 <d_bot> <rbjorklin> Do you have an example?

22:26 <d_bot> <Mukal> ```py

22:26 <d_bot> <Mukal> let languages = ["OCaml";"Perl";"C"] ;;

22:26 <d_bot> <Mukal> List.map languages ~f:String.length ;;

22:26 <d_bot> <Mukal> ```

22:26 <d_bot> <Mukal> This one

22:27 <d_bot> <NULL> (Replace "py" with "ocaml" in your code blocks)

22:27 <d_bot> <Mukal> Nice

22:28 <d_bot> <Mukal> Yep but the book says

22:28 <d_bot> <Mukal> ```ocaml

22:28 <d_bot> <Mukal> 2. **. 8.;;

22:28 <d_bot> <Mukal> ```

22:28 <d_bot> <Mukal> Well, maybe it's one of those "it works on my machine". But not that important either (maybe?)

22:29 <d_bot> <NULL> Did you open `Base` ?

22:29 <d_bot> <hcarty> @Klei023 I think the instructions assume you've done `open Base;;` to bring this all into scope

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22:29 <d_bot> <Mukal> I did

22:29 <d_bot> <Mukal> Let me check it once more to reaffirm

22:30 <d_bot> <NULL> Your errors pretty much align with the default behaviour (i.e. not opening Base)

22:30 <d_bot> <Mukal> ....

22:30 <d_bot> <Mukal> It works now

22:30 <d_bot> <Mukal> I pity those IT support folks

22:30 <d_bot> <Mukal> Sorry guys

22:31 <d_bot> <rbjorklin> You can put `open Base` in `~/.ocamlinit` just after `require "base"` to have it be automatic every time you open up `utop`

22:32 <d_bot> <Mukal> Alright will do

22:32 <d_bot> <Mukal> Thanks

22:33 <d_bot> <Mukal> Yep works

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22:59 <d_bot> <gabenpls> #compilers is now a thing if anyone's interested

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