From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from mail3-relais-sop.national.inria.fr (mail3-relais-sop.national.inria.fr [192.134.164.104])
	by walapai.inria.fr (8.13.6/8.13.6) with ESMTP id p3UJQueS005600
	for <caml-list@sympa-roc.inria.fr>; Sat, 30 Apr 2011 21:26:56 +0200
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: AqEEAG1hvE1KfVI0imdsb2JhbACEUZQBjT4IFAEBAQoJDQcSBiGIcZ87ikA8giqEDDSIXgEBAwaBJINVgQEEjnmEGYEOhRM7gy8
X-IronPort-AV: E=Sophos;i="4.64,294,1301868000"; 
   d="scan'208";a="82072973"
Received: from mail-ww0-f52.google.com ([74.125.82.52])
  by mail3-smtp-sop.national.inria.fr with ESMTP/TLS/RC4-MD5; 30 Apr 2011 21:26:51 +0200
Received: by wwe15 with SMTP id 15so6229441wwe.9
        for <caml-list@inria.fr>; Sat, 30 Apr 2011 12:26:51 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=gamma;
        h=domainkey-signature:message-id:date:from:user-agent:mime-version:to
         :subject:references:in-reply-to:content-type
         :content-transfer-encoding;
        bh=esXOeHkCB0Mcqa2z1kKqHYUMSFirndl1UUGBZQlgWcw=;
        b=dPksOz55kJxQFNYPFUdL9EaY3eZbHnhMqKFbESuWrJXHxuhpVgT4Hmu7iRjiiIJaH3
         ALKrhCh0nWYajyu1fRe59iekST3eTRTCsvl0CTCni1eOQw4nRDYTtHxADI+aMsYlpHgU
         wSJkJdm76hsCFmN5WF6THBAnrcAEGGe8j3Q5k=
DomainKey-Signature: a=rsa-sha1; c=nofws;
        d=gmail.com; s=gamma;
        h=message-id:date:from:user-agent:mime-version:to:subject:references
         :in-reply-to:content-type:content-transfer-encoding;
        b=rBepK5tlWb90obcHiR+6CzMKK+jq5hq1F+p6RQc3rwwtILG16IZzP81iqkxNrkrCAs
         hmsWTOahJ+Hnb9gVArDj15sfOuMymXwSKbO4pmTzF4Y2YZnhCxxy7lP62W7Y3doKp7Mn
         k0ex95gecyMOu+340JeaG9UcLrW/ew7XLauBk=
Received: by 10.216.239.73 with SMTP id b51mr845314wer.60.1304191611139;
        Sat, 30 Apr 2011 12:26:51 -0700 (PDT)
Received: from [192.168.1.186] ([93.7.165.241])
        by mx.google.com with ESMTPS id z13sm2423937wbd.12.2011.04.30.12.26.48
        (version=SSLv3 cipher=OTHER);
        Sat, 30 Apr 2011 12:26:50 -0700 (PDT)
Message-ID: <4DBC6277.5000908@gmail.com>
Date: Sat, 30 Apr 2011 21:26:47 +0200
From: Andrew <newsgroups.fr@gmail.com>
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; fr; rv:1.9.2.17) Gecko/20110414 Lightning/1.0b2 Thunderbird/3.1.10
MIME-Version: 1.0
To: caml-list@inria.fr
References: <BANLkTi=55g=rwiRm03_eS=uyGGDCoi4ezg@mail.gmail.com> <164004794.892685.1304067487325.JavaMail.root@zmbs2.inria.fr> <20110429093355.GA25892@yquem.inria.fr> <4746acd6-ddad-498c-a535-a3bfdcb5fec7@email.android.com>
In-Reply-To: <4746acd6-ddad-498c-a535-a3bfdcb5fec7@email.android.com>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Subject: Re: [Caml-list] Comparing variant types

> Hello,
>
> You want to avoid code size quadratic in the number of constructors. Which is possible:
>
> let cmp x y = match x, y with
> A, A -> true
> | A, _ | _, A -> false
> | B, B -> true
> | B, _ | _, B -> false
> ...

Yay! _ strikes back =)