From: Florian Angeletti <octa@polychoron.fr>
To: caml-list@inria.fr
Subject: Re: [Caml-list] Returning printf from a function
Date: Thu, 23 Aug 2018 12:08:10 +0200 [thread overview]
Message-ID: <81f925d8-a5e0-2c6b-b2c7-a752e2db4135@polychoron.fr> (raw)
In-Reply-To: <20180823094826.xhc253lxxgt5la7a@annexia.org>
[-- Attachment #1: Type: text/plain, Size: 388 bytes --]
A solution that works in this specific example and does not require to
rewire the logic is
to return the printing function inside a record with the right universal
quantification:
...
type debug = {fn: 'a. ('a, unit, string, unit) format4 -> 'a }[@@unboxed];;
let udebug = {fn=debug}
let give_fn () = Some udebug
...
| Some {fn} ->
fn "fn";
fn "fn param: %s" param
[-- Attachment #2: Type: text/html, Size: 1163 bytes --]
next prev parent reply other threads:[~2018-08-23 10:08 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-23 9:15 Richard W.M. Jones
2018-08-23 9:28 ` Florian Angeletti
2018-08-23 9:48 ` Richard W.M. Jones
2018-08-23 10:08 ` Florian Angeletti [this message]
2018-08-23 10:23 ` Richard W.M. Jones
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=81f925d8-a5e0-2c6b-b2c7-a752e2db4135@polychoron.fr \
--to=octa@polychoron.fr \
--cc=caml-list@inria.fr \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox