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 4D73B7EE34 for ; Fri, 18 Mar 2016 20:43:01 +0100 (CET) IronPort-PHdr: 9a23:ZR84KBKewe7ORGR7KtmcpTZWNBhigK39O0sv0rFitYgULv/xwZ3uMQTl6Ol3ixeRBMOAu6IC07Sd7/iocFdDyKjCmUhKSIZLWR4BhJdetC0bK+nBN3fGKuX3ZTcxBsVIWQwt1Xi6NU9IBJS2PAWK8TWM5DIfUi/yKRBybrysXNWC34Lviavuo9X6WEZhunmUWftKNhK4rAHc5IE9oLBJDeIP8CbPuWZCYO9MxGlldhq5lhf44dqsrtY4q3wD86Fpy8kVWqz/e+E8TKdEJDUgKWE8osPx5jfZSg7a3WcRXGwQ2j9PBQ7E4QuyCpL2tC37u/BV2TOde9DzSrYoQzmr6+FgQUm72288Kzcl/TSP2YRLh6VBrUf5qg== Authentication-Results: mail2-smtp-roc.national.inria.fr; spf=None smtp.pra=monnier@iro.umontreal.ca; spf=Pass smtp.mailfrom=gclci-caml-list@m.gmane.org; spf=Pass smtp.helo=postmaster@plane.gmane.org Received-SPF: None (mail2-smtp-roc.national.inria.fr: no sender authenticity information available from domain of monnier@iro.umontreal.ca) identity=pra; client-ip=80.91.229.3; receiver=mail2-smtp-roc.national.inria.fr; envelope-from="gclci-caml-list@m.gmane.org"; x-sender="monnier@iro.umontreal.ca"; x-conformance=sidf_compatible Received-SPF: Pass (mail2-smtp-roc.national.inria.fr: domain of gclci-caml-list@m.gmane.org designates 80.91.229.3 as permitted sender) identity=mailfrom; client-ip=80.91.229.3; receiver=mail2-smtp-roc.national.inria.fr; envelope-from="gclci-caml-list@m.gmane.org"; x-sender="gclci-caml-list@m.gmane.org"; x-conformance=sidf_compatible; x-record-type="v=spf1" Received-SPF: Pass (mail2-smtp-roc.national.inria.fr: domain of postmaster@plane.gmane.org designates 80.91.229.3 as permitted sender) identity=helo; client-ip=80.91.229.3; receiver=mail2-smtp-roc.national.inria.fr; envelope-from="gclci-caml-list@m.gmane.org"; x-sender="postmaster@plane.gmane.org"; x-conformance=sidf_compatible; x-record-type="v=spf1" X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A0A8CgBRWexWdwPlW1BevzSJLjoSAQEBAQEBAQEQARczL0EBAQMJBIFaghUBBYEJC0YUKBuIQAQBwTGKYoUIhQoBBJdXj1MBjTePBicDgW4BAQgCAYI+hjCDP4FCAQEB X-IPAS-Result: A0A8CgBRWexWdwPlW1BevzSJLjoSAQEBAQEBAQEQARczL0EBAQMJBIFaghUBBYEJC0YUKBuIQAQBwTGKYoUIhQoBBJdXj1MBjTePBicDgW4BAQgCAYI+hjCDP4FCAQEB X-IronPort-AV: E=Sophos;i="5.24,356,1454972400"; d="scan'208";a="208696186" Received: from plane.gmane.org ([80.91.229.3]) by mail2-smtp-roc.national.inria.fr with ESMTP/TLS/AES256-SHA; 18 Mar 2016 20:43:00 +0100 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1ah0IV-0005PS-8t for caml-list@inria.fr; Fri, 18 Mar 2016 20:42:59 +0100 Received: from 107-179-144-20.cpe.teksavvy.com ([107.179.144.20]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 18 Mar 2016 20:42:59 +0100 Received: from monnier by 107-179-144-20.cpe.teksavvy.com with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 18 Mar 2016 20:42:59 +0100 X-Injected-Via-Gmane: http://gmane.org/ To: caml-list@inria.fr From: Stefan Monnier Date: Fri, 18 Mar 2016 15:42:54 -0400 Message-ID: References: <56EC4318.2020701@freenet.de> Mime-Version: 1.0 Content-Type: text/plain X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 107-179-144-20.cpe.teksavvy.com User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux) Cancel-Lock: sha1:wi4VucaupEtk5taEKAlKJ+fB5aU= X-Validation-by: monnier@iro.umontreal.ca Subject: Re: [Caml-list] what does let () = ... define? > ... the question is: okay, pattern matching left of the equal sign, > but what does it define? It defines unit and None in the environment, > and then that value is just sitting there? let = in is basically syntactic sugar for match with => -- Stefan