#ocaml on 2019-08-12 — irc logs at freenode.irclog.whitequark.org

2019-06-16 15:10 adrien changed the topic of #ocaml to: Discussions about the OCaml programming language | http://www.ocaml.org | OCaml 4.08 release notes: https://caml.inria.fr/pub/distrib/ocaml-4.08/notes/Changes | Try OCaml in your browser: http://try.ocamlpro.com | Public channel logs at http://irclog.whitequark.org/ocaml

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00:50 <lizzin> https://pastebin.com/2kHz5bjJ

00:51 <lizzin> Why is the semicolon needed on line 7?

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00:51 <companion_cube> it separates two expressions

00:52 <companion_cube> if it weren't there, it'd be as if you call `Out_channel.print_endline` with 3 arguments, not 1

00:55 <lizzin> i gathered that is what is happening here. but its seems odd that the compiler works this way

00:55 <lizzin> does ocaml not care about the linebreak/newline?

00:56 <lizzin> companion_cube: do you happen to know where i might read more on this in realworldocaml?

00:56 <companion_cube> ocaml doesn't care about newlines at all

00:57 <lizzin> i guess explains why the ; is necessary then

00:57 <companion_cube> look for http://dev.realworldocaml.org/guided-tour.html "Note the use of single semicolons"

00:58 <lizzin> ty

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15:00 <cemerick> how can I refer to the previous result(s) in utop, viz. `_` in python, `*1` etc in Clojure, and so on?

15:05 <ggole> I don't think the toplevels have that feature.

15:11 <Kitambi> I'd just assign it to something and display it

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15:12 <cemerick> yeah, pity

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15:44 <freyr69> How to allocate array in ffi, it I don't want to initialize it?

15:45 <freyr69> caml_alloc (len, 0)?

15:45 <Kitambi> look at what ctypes does

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