From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-Status: No, score=-3.9 required=3.0 tests=AWL,BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A, RCVD_IN_DNSWL_MED,RCVD_IN_MSPIKE_H4,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE, SPF_PASS shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dcvr.yhbt.net (Postfix) with ESMTPS id BF79C1F4B4 for ; Sat, 24 Oct 2020 20:39:06 +0000 (UTC) Received: from localhost ([::1]:47962 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kWQJd-0006FE-Jc for normalperson@yhbt.net; Sat, 24 Oct 2020 16:39:05 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:37358) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kWQJa-0006Ez-22 for bug-gnulib@gnu.org; Sat, 24 Oct 2020 16:39:02 -0400 Received: from zimbra.cs.ucla.edu ([131.179.128.68]:56210) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kWQJX-0004z3-D1 for bug-gnulib@gnu.org; Sat, 24 Oct 2020 16:39:01 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id D385E1600C4; Sat, 24 Oct 2020 13:38:55 -0700 (PDT) Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id TX5QUOyYS3QC; Sat, 24 Oct 2020 13:38:54 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id BB2FB160126; Sat, 24 Oct 2020 13:38:54 -0700 (PDT) X-Virus-Scanned: amavisd-new at zimbra.cs.ucla.edu Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id ztYyqnr6yhvy; Sat, 24 Oct 2020 13:38:54 -0700 (PDT) Received: from [192.168.1.9] (cpe-23-243-218-95.socal.res.rr.com [23.243.218.95]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id 88E861600C4; Sat, 24 Oct 2020 13:38:54 -0700 (PDT) Subject: Re: swarm of bugs in gnulib wrt restrict To: Ingo Schwarze References: <20201024142440.GA96855@athene.usta.de> From: Paul Eggert Autocrypt: addr=eggert@cs.ucla.edu; prefer-encrypt=mutual; keydata= mQINBEyAcmQBEADAAyH2xoTu7ppG5D3a8FMZEon74dCvc4+q1XA2J2tBy2pwaTqfhpxxdGA9 Jj50UJ3PD4bSUEgN8tLZ0san47l5XTAFLi2456ciSl5m8sKaHlGdt9XmAAtmXqeZVIYX/UFS 96fDzf4xhEmm/y7LbYEPQdUdxu47xA5KhTYp5bltF3WYDz1Ygd7gx07Auwp7iw7eNvnoDTAl KAl8KYDZzbDNCQGEbpY3efZIvPdeI+FWQN4W+kghy+P6au6PrIIhYraeua7XDdb2LS1en3Ss mE3QjqfRqI/A2ue8JMwsvXe/WK38Ezs6x74iTaqI3AFH6ilAhDqpMnd/msSESNFt76DiO1ZK QMr9amVPknjfPmJISqdhgB1DlEdw34sROf6V8mZw0xfqT6PKE46LcFefzs0kbg4GORf8vjG2 Sf1tk5eU8MBiyN/bZ03bKNjNYMpODDQQwuP84kYLkX2wBxxMAhBxwbDVZudzxDZJ1C2VXujC OJVxq2kljBM9ETYuUGqd75AW2LXrLw6+MuIsHFAYAgRr7+KcwDgBAfwhPBYX34nSSiHlmLC+ KaHLeCLF5ZI2vKm3HEeCTtlOg7xZEONgwzL+fdKo+D6SoC8RRxJKs8a3sVfI4t6CnrQzvJbB n6gxdgCu5i29J1QCYrCYvql2UyFPAK+do99/1jOXT4m2836j1wARAQABtCBQYXVsIEVnZ2Vy dCA8ZWdnZXJ0QGNzLnVjbGEuZWR1PokCVQQTAQgAPwIbAwYLCQgHAwIGFQgCCQoLBBYCAwEC HgECF4AWIQR+N5Kp2Kz31jO8FYjtl+kOYqp+NAUCXyW9lwUJFK4LswAKCRDtl+kOYqp+NKNV D/9HMsI1606n0UuTXHwITsyOjAI9SDOT+C3DUv6qlM5BH2nWAMTiIiyA5uglsJv93oi2vNtF f/Q/m/1cnZWgnVnExkyLI4ENSd1uBvr0/lCSdPlP0Mg6GWSpXMu+x0vdT0AaZNOTE0FnPuol dc3XD76C2qg8sX/iaxXTKHy9P+BlAq/Cs7/pxDQ0EzSn0USZ2C0l5vv4PMpA/picnS6K609J vDGaORmwZeXIZqQNZV+ZQs+UYtVoguDTqby3IUY1I8BlXHRptaj9AMn4Uoh/CqpQlVojoyWl HqaFnnJBKeF0hvJ9SAyalwuzAjG7vQW07MYncaOFm0woiKbg5JLO8F4SBTIkuO0DCf9nLAay 6VsB4rzwdEfRwjPLYAn7MR3fvHCEzfrkldTraiBO1T0ieDK80I7sLf6pMeCYI19pUlx0/NRM GCddiFIQdfthKWXGRS5LAs8jwBf8H6G5PWinPrEIaomIP21ivuhQD07bYq9IiIdeljjUdHcG I0i/B4M56Zaa8Ff38iniOlrDYCmYWR4dCWZiuQeZ3OgqeQs9a6jTvgdDGVmRVqY+jzk8PlaH fcok8ROhFcHKkcfhuBhL25hlRIshRDOEskXqKwnzrbqga3GXZXfsXAoFbzNhLdLv9A+LJAYS kXP6/5qdTpELVGosyH884VdbBpkGI04oYVqulbkCDQRMgHJkARAApoXrvxP3DIfjCNOtXU/P dwMShKdX/RlSs5PfunV1wbKP8herXHrvQdFVqECaTSxmlhzbk8X0PkY9gcVaU2O49T3qsOd1 cHeF52YFGEt0LhsBeMjgNX5uZ1V76r8gyeVlFpWWb0SIwJUBHrDXexF67upeRb2vdHBjYDNe ySn+0B7gFEqvVmZu+LadudDp6kQLjatFvHQHUSGNshBnkkcaTbiI9Pst0GCc2aiznBiPPA2W QxAPlPRh3OGTsn5THADmbjqY6FEMLasVX8DSCblMvLwNeO/8SxziBidhqLpJCqdQRWHku5Xx gIkGeKOz5OLDvXHWJyafrEYjjkS6Ak6B5z6svKliClWnjHQcjlPzyoFFgKTEfcqDxCj4RY0D 0DgtFD0NfyeOidrSB/SzTe2hwryQE3rpSiqo+0cGdzh4yAHKYJ+UrXZ4p93ZhjGfKD1xlrNY DlWyW9PGmbvqFuDmiIAQf9WD/wzEfICc+F+uDDI+uYkRxUFp92ykmdhDEFg1yjYsU8iGU69a Hyvhq36z4zctvbqhRNzOWB1bVJ/dIMDvsExGcXQVDIT7sDNXv0wE3jKSKpp7NDG1oXUXL+2+ SF99Kjy753AbQSAmH617fyBNwhJWvQYg+mUvPpiGOtses9EXUI3lS4v0MEaPG43flEs1UR+1 rpFQWVHo1y1OO+sAEQEAAYkCPAQYAQgAJgIbDBYhBH43kqnYrPfWM7wViO2X6Q5iqn40BQJf Jb2zBQkUrgvPAAoJEO2X6Q5iqn40cnMP/17CgUkXT9aIJriPM8wbceYrcl7+bdYEf79SlwSb bHN7R4CoIJFOlN9S/34typGVYvpgmCJDYFTBxyPO92iMXDgA4+cWHzt5T1aYO9hsKhh7vDtK +6ProZGc+08gUTXHhb97hMMQhknJlnfjpSEC9em906FU+I93T1fTGupnBa3aWcK8jM0JaBGb y2hG1S3olaDLSTtBINNBYmvuWR9MKOhhqDrlk5cwFDJLh5NrXteEY08WAzcLzG3pkrXPHkFe MQtfqk0jLdGGvGC3NCIkqYrdLhiRvGpru38C26REn5f4I0vGE3VfIXHe8TMCNmQut1NtMuUm pDIy1aLxGzuptUhnOJN//r+VjDPoi3LOySNYphqe/dMubsfUr6ohP41mKF81FuwI4amqJtrq IL2yqax3a0qlfwCxXftieqJcuekX+eCPDCKrYMXR0FYgwpG2ITZUGtrEjESlE6Dscx734HKd r5ORIocLUUKEOGeiU6DGhGFdb5Twu0Sn+u1mUPDN0M++CdMvClIE8klo4G91EOImu1Upb8xc OPQwxh1jwqSrU5QwoNmSYegQSHLpIUurFz1iQUh1vpPXzKinkWEqv4IqA1ciL+LyySuLkp7M sJpVRMbWJCNWOOSbaH4oDBJ5dHMGc35x5mosCk90PXknuFDDsYHfDo5smf9lo6YXx7N9 Organization: UCLA Computer Science Department Message-ID: Date: Sat, 24 Oct 2020 13:38:50 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20201024142440.GA96855@athene.usta.de> Content-Type: multipart/mixed; boundary="------------4A1A680521D610C95A9E56A0" Content-Language: en-US Received-SPF: pass client-ip=131.179.128.68; envelope-from=eggert@cs.ucla.edu; helo=zimbra.cs.ucla.edu X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/24 16:38:56 X-ACL-Warn: Detected OS = Linux 3.1-3.10 [fuzzy] X-Spam_score_int: -42 X-Spam_score: -4.3 X-Spam_bar: ---- X-Spam_report: (-4.3 / 5.0 requ) BAYES_00=-1.9, NICE_REPLY_A=-0.107, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: bug-gnulib@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Gnulib discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: bug-gnulib@gnu.org Errors-To: bug-gnulib-bounces+normalperson=yhbt.net@gnu.org Sender: "bug-gnulib" This is a multi-part message in MIME format. --------------4A1A680521D610C95A9E56A0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit On 10/24/20 7:24 AM, Ingo Schwarze wrote: > https://savannah.gnu.org/bugs/index.php?59276 As I understand it, the problem here is that Gnulib-using C++ code can't use 'restrict' as an identifier. This is worth documenting so I installed the attached patch. It's low priority to try to fix this, as it's a very minor restriction on Gnulib-using C++ code. --------------4A1A680521D610C95A9E56A0 Content-Type: text/x-patch; charset=UTF-8; name="0001-doc-mention-restrict-and-C.patch" Content-Disposition: attachment; filename="0001-doc-mention-restrict-and-C.patch" Content-Transfer-Encoding: quoted-printable >From 7d0b18cc9b553d07e2f60d5315e39e4e82e60033 Mon Sep 17 00:00:00 2001 From: Paul Eggert Date: Sat, 24 Oct 2020 13:35:17 -0700 Subject: [PATCH] =3D?UTF-8?q?doc:=3D20mention=3D20=3DE2=3D80=3D98restrict= =3DE2=3D80=3D99=3D20a?=3D =3D?UTF-8?q?nd=3D20C++?=3D MIME-Version: 1.0 Content-Type: text/plain; charset=3DUTF-8 Content-Transfer-Encoding: 8bit * doc/gnulib-readme.texi (C99 features assumed): Document that =E2=80=98restrict=E2=80=99 should be avoided in C++ code. --- ChangeLog | 6 ++++++ doc/gnulib-readme.texi | 2 ++ 2 files changed, 8 insertions(+) diff --git a/ChangeLog b/ChangeLog index 39257f6e2..8fa32e1ec 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,9 @@ +2020-10-24 Paul Eggert + + doc: mention =E2=80=98restrict=E2=80=99 and C++ + * doc/gnulib-readme.texi (C99 features assumed): Document + that =E2=80=98restrict=E2=80=99 should be avoided in C++ code. + 2020-10-20 Bernhard Voelker =20 selinux-at, selinux-h: port to SELinux 3.1 diff --git a/doc/gnulib-readme.texi b/doc/gnulib-readme.texi index 2ec11d554..beb0ca9b6 100644 --- a/doc/gnulib-readme.texi +++ b/doc/gnulib-readme.texi @@ -384,6 +384,8 @@ Variadic macros. @item The @code{restrict} qualifier, assuming @code{AC_REQUIRE([AC_C_RESTRICT])} is used. +This qualifier is sometimes implemented via a macro, so C++ code that +uses Gnulib should avoid using @code{restrict} as an identifier. =20 @item Flexible array members (however, see the @code{flexmember} module). --=20 2.25.1 --------------4A1A680521D610C95A9E56A0--