From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <daniel.buenzli@erratique.ch>
X-Original-To: caml-list@sympa.inria.fr
Delivered-To: caml-list@sympa.inria.fr
Received: from mail2-relais-roc.national.inria.fr (mail2-relais-roc.national.inria.fr [192.134.164.83])
	by sympa.inria.fr (Postfix) with ESMTPS id 9CBEC7EFCD
	for <caml-list@sympa.inria.fr>; Mon, 27 Oct 2014 19:51:35 +0100 (CET)
Received-SPF: None (mail2-smtp-roc.national.inria.fr: no sender
  authenticity information available from domain of
  daniel.buenzli@erratique.ch) identity=pra;
  client-ip=74.55.86.74;
  receiver=mail2-smtp-roc.national.inria.fr;
  envelope-from="daniel.buenzli@erratique.ch";
  x-sender="daniel.buenzli@erratique.ch";
  x-conformance=sidf_compatible
Received-SPF: None (mail2-smtp-roc.national.inria.fr: no sender
  authenticity information available from domain of
  daniel.buenzli@erratique.ch) identity=mailfrom;
  client-ip=74.55.86.74;
  receiver=mail2-smtp-roc.national.inria.fr;
  envelope-from="daniel.buenzli@erratique.ch";
  x-sender="daniel.buenzli@erratique.ch";
  x-conformance=sidf_compatible
Received-SPF: None (mail2-smtp-roc.national.inria.fr: no sender
  authenticity information available from domain of
  postmaster@smtp.webfaction.com) identity=helo;
  client-ip=74.55.86.74;
  receiver=mail2-smtp-roc.national.inria.fr;
  envelope-from="daniel.buenzli@erratique.ch";
  x-sender="postmaster@smtp.webfaction.com";
  x-conformance=sidf_compatible
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: AuIEAP2STlRKN1ZKnGdsb2JhbABcg2KCO4EjyjSHUQKBMwERAQEBAQEGDQkJFC6EAwEBBCMEUhALDgwCJgICRxAGG4g5BAm2cpRtAQEIAgEfgSyPKTMHgnc2gR4Fkw6DQYhDPIVnGIpCh3mDNgEBAQ
X-IPAS-Result: AuIEAP2STlRKN1ZKnGdsb2JhbABcg2KCO4EjyjSHUQKBMwERAQEBAQEGDQkJFC6EAwEBBCMEUhALDgwCJgICRxAGG4g5BAm2cpRtAQEIAgEfgSyPKTMHgnc2gR4Fkw6DQYhDPIVnGIpCh3mDNgEBAQ
X-IronPort-AV: E=Sophos;i="5.04,797,1406584800"; 
   d="scan'208";a="103221247"
Received: from mail6.webfaction.com (HELO smtp.webfaction.com) ([74.55.86.74])
  by mail2-smtp-roc.national.inria.fr with ESMTP; 27 Oct 2014 19:51:34 +0100
Received: from [172.20.10.2] (17-236.197-178.cust.bluewin.ch [178.197.236.17])
	by smtp.webfaction.com (Postfix) with ESMTP id BED7E207863B;
	Mon, 27 Oct 2014 18:51:32 +0000 (UTC)
Date: Mon, 27 Oct 2014 19:51:28 +0100
From: =?utf-8?Q?Daniel_B=C3=BCnzli?= <daniel.buenzli@erratique.ch>
To: David Allsopp <dra-news@metastack.com>
Cc: OCaml List <caml-list@inria.fr>
Message-ID: <8D9D2D7B6A29486D80BB692EC24DBE06@erratique.ch>
In-Reply-To: <000001cff20f$57052560$050f7020$@metastack.com>
References: <000001cff20f$57052560$050f7020$@metastack.com>
X-Mailer: sparrow 1.6.4 (build 1178)
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline
Subject: Re: [Caml-list] Vagaries of Printf variants

Le lundi, 27 octobre 2014 =C3=A0 18:56, David Allsopp a =C3=A9crit :
> but I'm sure there's a reason for its being that way!

You may be interested in reading this:

http://gallium.inria.fr/blog/format6/

Daniel

P.S. If you are using formatters the problem is less acute. Nowadays you ca=
n simply define formatters for each of your types with:

pp : Format.formatter -> t -> unit=20=20

and a to_string function is one `Format.asprintf "%a" pp` away.