From: Jean Saint-Remy <jeansaintremy@yahoo.com>
To: Gabriel Kerneis <gabriel@kerneis.info>
Cc: "caml-list@inria.fr" <caml-list@inria.fr>
Subject: Re: [Caml-list] applying labled argument error
Date: Sat, 9 Nov 2013 09:57:08 -0800 (PST) [thread overview]
Message-ID: <1384019828.3098.YahooMailNeo@web160502.mail.bf1.yahoo.com> (raw)
In-Reply-To: <20131109100726.GA4014@kerneis.info>
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Hi,
I've been working out some of the examples in the https://realworldocaml.org/v1/en/html/a-guided-tour.html, which does utilize JaneStreet 'core' library. The new ocaml website is very impressive, as it allows you to dive right in into very fascinating idiomatic ocaml expressions. Just launching ocaml toplevel though is not enough.
let sum list =
let sum = ref 0 in
List.iter list ~f:(fun x -> sum := !sum + x);
!sum ;;
-: Error: The function applied to this argument has type 'a list -> unit
This argument cannot be applied with label ~f
Jean
On Saturday, November 9, 2013 5:07 AM, Gabriel Kerneis <gabriel@kerneis.info> wrote:
On Fri, Nov 08, 2013 at 07:33:35PM -0800, Jean Saint-Remy wrote:
> I am running ocaml 3.12.1 and getting an error message. Is it an incompatible
> version error or a missing 'core' module?
Since you mention 'core', are you learning OCaml with "Real-World OCaml" (and
hence trying to use JaneStreet's Core library instead of the standard one)?
That would explain the discrepancy you are seeing.
Best,
--
Gabriel
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next prev parent reply other threads:[~2013-11-09 17:57 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-09 3:33 Jean Saint-Remy
2013-11-09 4:27 ` Eric Cooper
2013-11-09 10:07 ` Gabriel Kerneis
2013-11-09 17:57 ` Jean Saint-Remy [this message]
2013-11-09 18:39 ` Anthony Tavener
2013-11-09 18:42 ` Anil Madhavapeddy
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