From: Gabriel Scherer <gabriel.scherer@gmail.com>
To: rixed@happyleptic.org
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] keeping parameter polymorphic
Date: Thu, 4 Oct 2012 15:13:13 +0200 [thread overview]
Message-ID: <CAPFanBFwksgi-Gk0TJfK3e0BQo8LNs0OrvjaeexZZY67rTx7Ag@mail.gmail.com> (raw)
In-Reply-To: <20121004130310.GA20285@securactive.lan>
Hi,
See the following FAQ item: "How to write a function with polymorphic
arguments?"
http://caml.inria.fr/resources/doc/faq/core.en.html#polymorphic-arguments
On Thu, Oct 4, 2012 at 3:03 PM, <rixed@happyleptic.org> wrote:
> Hello.
> I can't find a way to keep f polymorphic in:
>
> let test f = f 1, f true
>
> that I'd like to return a int*bool from any function 'a->'a
>
> I now this question regularly pops up, but I've tried many combinations
> of "(type a)" and "'a." to no avail (ocaml 3.12.1 here).
>
> (in real world, my function takes a generic "fold" function that I'd
> like to use with various types).
>
>
> --
> Caml-list mailing list. Subscription management and archives:
> https://sympa.inria.fr/sympa/arc/caml-list
> Beginner's list: http://groups.yahoo.com/group/ocaml_beginners
> Bug reports: http://caml.inria.fr/bin/caml-bugs
prev parent reply other threads:[~2012-10-04 13:14 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-04 13:03 rixed
2012-10-04 13:13 ` Gabriel Scherer [this message]
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