From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 24262 invoked by alias); 4 Aug 2017 09:41:00 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Received: (qmail 24244 invoked by uid 89); 4 Aug 2017 09:40:59 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.9 required=5.0 tests=BAYES_00,RP_MATCHES_RCVD,SPF_PASS autolearn=ham version=3.3.2 spammy=awaits, deduction, mistaken X-HELO: aserp1040.oracle.com Received: from aserp1040.oracle.com (HELO aserp1040.oracle.com) (141.146.126.69) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Fri, 04 Aug 2017 09:40:58 +0000 Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id v749es0W001718 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 4 Aug 2017 09:40:55 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserv0022.oracle.com (8.14.4/8.14.4) with ESMTP id v749es8N016926 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 4 Aug 2017 09:40:54 GMT Received: from abhmp0015.oracle.com (abhmp0015.oracle.com [141.146.116.21]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id v749esOx028367; Fri, 4 Aug 2017 09:40:54 GMT Received: from [192.168.1.4] (/79.53.235.194) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 04 Aug 2017 02:40:53 -0700 Subject: [C++ Patch Ping] Re: [C++ Patch] PR 79790 ("[C++17] ICE class template argument deduction") To: Nathan Sidwell , "gcc-patches@gcc.gnu.org" Cc: Jason Merrill References: <25e893cd-0bf5-4c5e-24b7-70daba6793dc@oracle.com> <5469528a-e9ef-6f81-849d-e7321de6a14b@acm.org> From: Paolo Carlini Message-ID: Date: Fri, 04 Aug 2017 09:41:00 -0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.1.0 MIME-Version: 1.0 In-Reply-To: <5469528a-e9ef-6f81-849d-e7321de6a14b@acm.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-IsSubscribed: yes X-SW-Source: 2017-08/txt/msg00360.txt.bz2 Hi, On 14/07/2017 19:51, Nathan Sidwell wrote: > On 07/14/2017 01:32 PM, Paolo Carlini wrote: > >> While working on the bug I also noticed that we can simplify a bit >> the code >> generating the implicit deduction guides: if I'm not mistaken, when >> we pass >> types as first argument of build_deduction_guide - for implicit >> guides, that is >> - the deduction guide is never explicit. thus DECL_NONCONVERTING_P is >> never >> true. It's an unrelated tweak, anyway, which we can consider applying >> by itself >> if we don't change the code generating the implicit deduction guides. > > I recall wondering the same thing when adding the 'elided = true' > pieces, but didn't investigate enough to confirm/deny. Thanks for > getting this. You are welcome! I think the rest of the patch - the bug fix proper - still awaits a review... Thanks! Paolo.