#ocaml on 2020-06-13 — irc logs at freenode.irclog.whitequark.org

2019-09-26 12:04 adrien changed the topic of #ocaml to: Discussions about the OCaml programming language | http://www.ocaml.org | OCaml 4.09 release notes: https://caml.inria.fr/pub/distrib/ocaml-4.09/notes/Changes | Try OCaml in your browser: http://try.ocamlpro.com | Public channel logs at http://irclog.whitequark.org/ocaml

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00:12 <HyperTables> hello folks! I'm needing to create a string containing a single character given by integer value x, where x is a variable

00:13 <HyperTables> basically how to I go from `Char.chr` to `string`

00:14 <HyperTables> fill/blit look like overkill I was hoping there would be a simpler way

00:19 <HyperTables> ah I see there is String.make also -- will use that. nvm

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12:14 <flux1> companion_cube: how about! `let rec seq_of_gen : 'a CCIO.gen -> 'a Seq.t = fun gen () -> match gen () with | None -> Seq.Nil | Some value -> Seq.Cons (value, seq_of_gen gen)`

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12:55 <mbuf> Is the latest source of ocabot that is deployed in this channel? https://github.com/c-cube/ocabot

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15:32 <companion_cube> it is

15:32 <companion_cube> flux1: yes but be careful because that is only iterable once

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17:50 <mbuf> companion_cube, any examples on how to use ocabot?

17:59 <mbuf> ocabot, hello

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18:02 <mbuf> hello ocabot

18:05 <mbuf> ocabot mbuf

18:06 <mbuf> ocabot, hello mbuf

18:12 <mbuf> companion_cube, could you please update the README of ocabot with some usage examples when you have time? thanks!

18:15 <Anarchos> what is ocabot

18:18 <mbuf> It is a bot

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19:23 <flux1> so I did a buy-in in naming exception-throwing functions with suffix `_exn`. would've been easier to just rename all my functions..

19:24 <flux1> basically 1) search all raises 2) rename those functions and references to them to have use _exn 3) search all references to _exn-functions 4) if new results, goto 3

19:24 <flux1> I think there should be a ppx-based tool to do this analysis!

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19:27 <flux1> what this leaves to me is to document for each _exn function which exceptions it might throw, and probably wrap a bunch of them

19:27 <flux1> ..or possibly start incremental conversion from exceptions to polymorphic variants, but it would lose backtraces

19:27 <flux1> is there a way to emulate backtraces?

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19:40 <flux1> I guess just `try assert false with _ -> Printexc.get_backtrace()` would work

19:42 <flux1> oh, actually it works even without an exception

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