From: Fabrice Marchant <fabrice.marchant@orange.fr>
To: caml-list@yquem.inria.fr
Subject: Re: [Caml-list] Having '<<', why to use '|>' ?
Date: Wed, 19 Sep 2007 21:49:38 +0200 [thread overview]
Message-ID: <20070919214938.76e4fa8b@localhost.localdomain> (raw)
In-Reply-To: <200709181742.27747.jon@ffconsultancy.com>
On Tue, 18 Sep 2007 17:42:27 +0100
Jon Harrop <jon@ffconsultancy.com> wrote:
>> A 3 chars operator (<<<) doesn't look smart.
>That is actually the F# for lsl. There are also ||| and &&& for bitwise ops.
Thanks Jon, happy to read you,
So, do you think that (<<<) could replace (<<) as a function composition operator ?
> > However, about (@@), I preferred to see the direction of the asymmetric
> > composition operator. ( <| ) instead of ( << ) ? Is this a possible idea ?
> But "<<" is the converse of ">>" (in F#) and "|>" has no converse (or you
> could say that "x |> f" is the converse of "f x").
Things must keep consistent, you're right. So, ( <| ) instead of ( << )
can't be used.
Julien proposed ( @@ ).
However I saw it was used this way :
let rec ( @@ ) l1 l2 = List.rev_append l1 l2;; ( Why rec ? )
here :
http://sourceforge.net/project/showfiles.php?group_id=178291
It would be useful that experimented OCaml people suggest a replacement for the heavily used composition operator ( << ) that is now reserved for camlp4...
Regards,
Fabrice
next prev parent reply other threads:[~2007-09-19 21:48 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-17 14:36 Fabrice Marchant
2007-09-17 18:59 ` [Caml-list] " Eric Cooper
2007-09-17 19:45 ` Fabrice Marchant
2007-09-17 22:24 ` Julien Moutinho
2007-09-18 5:39 ` Fabrice Marchant
2007-09-18 8:53 ` Julien Moutinho
2007-09-18 9:09 ` Julien Moutinho
2007-09-18 14:12 ` Fabrice Marchant
2007-09-18 16:42 ` Jon Harrop
2007-09-18 20:41 ` skaller
2007-09-19 19:49 ` Fabrice Marchant [this message]
2007-09-19 21:56 ` Vincent Aravantinos
2007-09-20 13:42 ` Ashish Agarwal
2007-09-20 18:37 ` Gabriel Kerneis
2007-09-21 20:58 ` Harrison, John R
2007-09-21 21:44 ` Karl Zilles
2007-09-20 14:39 Aaron Bohannon
2007-09-22 15:22 ` Nicolas Pouillard
2007-09-22 15:43 ` Daniel Bünzli
2007-09-22 23:55 ` Christian Stork
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=20070919214938.76e4fa8b@localhost.localdomain \
--to=fabrice.marchant@orange.fr \
--cc=caml-list@yquem.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