#ocaml on 2019-03-24 — irc logs at freenode.irclog.whitequark.org

2018-10-19 11:39 adrien changed the topic of #ocaml to: Discussions about the OCaml programming language | http://www.ocaml.org | OCaml 4.07.1 release notes: https://caml.inria.fr/pub/distrib/ocaml-4.07/notes/Changes | Try OCaml in your browser: http://try.ocamlpro.com | Public channel logs at http://irclog.whitequark.org/ocaml | Due to ongoing spam, you must register your nickname to talk on the channel

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00:11 <IzzyWithAnIzze> Heya! I need some assistance with hacking on the ocaml compiler: Specifically, how do I introduce a new dependency to the build system?

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01:09 <xuib> so i've seen statements like Int.pow <-- where does that come from?

01:09 <xuib> it's not in the stdlib as far as i can tell

01:10 <xuib> nvm, Batteries

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01:42 <xuib> so, i've installed batteries, but i cannot open it : unbound module Batteries

01:43 <xuib> i've got as far as ocamlfind -package batteries, or whatever, but where and when do i use that?

01:43 <xuib> i use utop for my REPL, does it need to be run everytime i run utop, or ocamlbuild ?

01:44 <xuib> is it a cache thing? i don't understand

02:00 <madroach> in utop try '#require "batteries";;'

02:02 <xuib> madroach: perfect, thanks. the require statement does what specifically? links the module when compiling?

02:17 <madroach> xuib: links the module in the REPL.

02:19 <madroach> xuib: when compiling you will want to do something like 'ocamlfind ocamlc -linkpkg -packages batteries'

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03:03 <xuib> thanks man

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03:15 <xuib> LOG: batteries

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15:50 <Netsu> hellow there. I'm newbie in OCaml yet. Could you point me, please, what exactly I'm doing wrong here: https://gist.github.com/Pitometsu/5e79f7cb077da03184170815fb6b7f5a

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15:55 <Netsu> hellow there. I'm newbie in OCaml yet. Could you point me, please, what exactly I'm doing wrong here: https://gist.github.com/Pitometsu/5e79f7cb077da03184170815fb6b7f5a

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15:59 <octachron> Netsu, the right hand side of with constraints must be already defined. You cannot define new modules nor types.

16:01 <octachron> "type t += A.Message.t" is also not meaningful, you cannot add types to extensible variants, only constructors of the same type.

16:02 <Netsu> octachron: oh, thank you a lot, that was not clear for me.

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