From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: 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 071D87FC53 for ; Tue, 29 Sep 2015 15:56:57 +0200 (CEST) IronPort-PHdr: 9a23:N3SSTx9zToHaSP9uRHKM819IXTAuvvDOBiVQ1KB80+4cTK2v8tzYMVDF4r011RmSDdmdtq0P1buempujcFJDyK7JiGoFfp1IWk1NouQttCtkPvS4D1bmJuXhdS0wEZcKflZk+3amLRodQ56mNBXsq3G/pQQfBg/4fVIsYL+lRsiP0I/phqibwN76XUZhvHKFe7R8LRG7/036l/I9ps9cEJs30QbDuXBSeu5blitCLFOXmAvgtI/rpMYwuwwZgf8q9tZBXKPmZOx4COUAVHV1e1wyseLivwPCQA/H3XAcX38biFIcDAHP9hD3WtHquSv3rOdn8CafNMzyC7szXGLxwb1sTUrKhTwfOiRx1GbKi9c4paRXrQi6qho3l4zZe5mYLrx6eb7cZpUTQ2ZMRN1cUQROB4q9a80ECO9XbrUQlJX0u1Zb9Uj2PgKrHu66j2YQ3nI= Authentication-Results: mail2-smtp-roc.national.inria.fr; spf=None smtp.pra=jesper.louis.andersen@gmail.com; spf=Pass smtp.mailfrom=jesper.louis.andersen@gmail.com; spf=None smtp.helo=postmaster@mail-wi0-f171.google.com Received-SPF: None (mail2-smtp-roc.national.inria.fr: no sender authenticity information available from domain of jesper.louis.andersen@gmail.com) identity=pra; client-ip=209.85.212.171; receiver=mail2-smtp-roc.national.inria.fr; envelope-from="jesper.louis.andersen@gmail.com"; x-sender="jesper.louis.andersen@gmail.com"; x-conformance=sidf_compatible Received-SPF: Pass (mail2-smtp-roc.national.inria.fr: domain of jesper.louis.andersen@gmail.com designates 209.85.212.171 as permitted sender) identity=mailfrom; client-ip=209.85.212.171; receiver=mail2-smtp-roc.national.inria.fr; envelope-from="jesper.louis.andersen@gmail.com"; x-sender="jesper.louis.andersen@gmail.com"; x-conformance=sidf_compatible; x-record-type="v=spf1" Received-SPF: None (mail2-smtp-roc.national.inria.fr: no sender authenticity information available from domain of postmaster@mail-wi0-f171.google.com) identity=helo; client-ip=209.85.212.171; receiver=mail2-smtp-roc.national.inria.fr; envelope-from="jesper.louis.andersen@gmail.com"; x-sender="postmaster@mail-wi0-f171.google.com"; x-conformance=sidf_compatible X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A0CXAgA3mApWlKvUVdFehGEGgySnW5pfAoFEBzsRAQEBAQEBAQEQAQEBAQcLCwkfMIIdgX4KAQEDARIRHQEbHQEDAQsGBQMBBzcCAiEBAREBBQEcBhMIGod2AQMKCKkmgTA+MYtHgWyCeYoNChknDVaEMwEBAQEGAQEBAQEXAQUOhmaEfIJQgj0HgmmBQwWVdIsjgXCTfIV8EiOBFzeCMIF/PDOJHwEBAQ X-IPAS-Result: A0CXAgA3mApWlKvUVdFehGEGgySnW5pfAoFEBzsRAQEBAQEBAQEQAQEBAQcLCwkfMIIdgX4KAQEDARIRHQEbHQEDAQsGBQMBBzcCAiEBAREBBQEcBhMIGod2AQMKCKkmgTA+MYtHgWyCeYoNChknDVaEMwEBAQEGAQEBAQEXAQUOhmaEfIJQgj0HgmmBQwWVdIsjgXCTfIV8EiOBFzeCMIF/PDOJHwEBAQ X-IronPort-AV: E=Sophos;i="5.17,608,1437429600"; d="scan'208";a="179977901" Received: from mail-wi0-f171.google.com ([209.85.212.171]) by mail2-smtp-roc.national.inria.fr with ESMTP/TLS/AES128-GCM-SHA256; 29 Sep 2015 15:56:56 +0200 Received: by wiclk2 with SMTP id lk2so152454507wic.0; Tue, 29 Sep 2015 06:56:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type; bh=4rrr0Ku76uFPa6q0eFi5dz8/nL3gE/QnS0gzUU6n/pM=; b=Rh4E7CdV14hYKI8rgTgqXab+HFLlkUCOUhJ6fu60KrY7iJpeyUGe8Y+idkgn+iBYE8 A8D8/a7Yf11fAyYBBnlqZw87zIwi7y6lSDMChM129rkT0IAdoIWoiPDFECCWcvfEy+a8 4n+HwNwhAtRkaV4KpggH7MEfHyaSH5RniKVBma0bSOBk8jCFVrKHWHJ0uMRvyNPpwiWo 3fMRpW3yZZ1vaTN7HERzjm4FT+6jQOwOz8fZMviwCIgwlOaULo0PfP50L+V5eN9BfV/f GmroDXfhOMUUchbiH6JusHv0ikN6pxDJcGjMSHO6z7dJc10bkuxthXivkzLmu/4Ez74B YHdw== X-Received: by 10.180.12.145 with SMTP id y17mr26201588wib.83.1443535016439; Tue, 29 Sep 2015 06:56:56 -0700 (PDT) MIME-Version: 1.0 Received: by 10.27.12.9 with HTTP; Tue, 29 Sep 2015 06:56:16 -0700 (PDT) In-Reply-To: References: <20150929124344.GA13383@pl-59055.rocqadm.inria.fr> From: Jesper Louis Andersen Date: Tue, 29 Sep 2015 15:56:16 +0200 Message-ID: To: Gabriel Scherer Cc: =?UTF-8?Q?S=C3=A9bastien_Hinderer?= , caml users Content-Type: multipart/alternative; boundary=001a11c2be14e036cf0520e32f4c Subject: Re: [Caml-list] polymorphic sets? --001a11c2be14e036cf0520e32f4c Content-Type: text/plain; charset=UTF-8 On Tue, Sep 29, 2015 at 2:58 PM, Gabriel Scherer wrote: > Note that the polymorphic sets (or maps) are less statically-safe than > their functorized counterpart, because they are parametrized over their > comparison function at creation time The only point in time I've had troubles is when you have a map where its values and keys range over a type that can recursively contain that map of the same type. This required a polymorphic compare (from Core) to pull off. -- J. --001a11c2be14e036cf0520e32f4c Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

= On Tue, Sep 29, 2015 at 2:58 PM, Gabriel Scherer <gabriel.scherer@= gmail.com> wrote:
Note tha= t the polymorphic sets (or maps) are less statically-safe than their functo= rized counterpart, because they are parametrized over their comparison func= tion at creation time

The only point in time I've had troubles is when you have a map wher= e its values and keys range over a type that can recursively contain that m= ap of the same type. This required a polymorphic compare (from Core) to pul= l off.


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J.
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