From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from outbound-ss-820.bluehost.com (outbound-ss-820.bluehost.com [69.89.24.241]) by sourceware.org (Postfix) with ESMTPS id 094813858D33 for ; Thu, 5 Jan 2023 19:53:38 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 094813858D33 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=tromey.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=tromey.com Received: from cmgw11.mail.unifiedlayer.com (unknown [10.0.90.126]) by progateway2.mail.pro1.eigbox.com (Postfix) with ESMTP id 78963100424DB for ; Thu, 5 Jan 2023 19:53:37 +0000 (UTC) Received: from box5379.bluehost.com ([162.241.216.53]) by cmsmtp with ESMTP id DWIzp3EUO2CCnDWIzpC9fa; Thu, 05 Jan 2023 19:53:37 +0000 X-Authority-Reason: nr=8 X-Authority-Analysis: v=2.4 cv=Ds2TREz+ c=1 sm=1 tr=0 ts=63b72ac1 a=ApxJNpeYhEAb1aAlGBBbmA==:117 a=ApxJNpeYhEAb1aAlGBBbmA==:17 a=dLZJa+xiwSxG16/P+YVxDGlgEgI=:19 a=RvmDmJFTN0MA:10:nop_rcvd_month_year a=Qbun_eYptAEA:10:endurance_base64_authed_username_1 a=CCpqsmhAAAAA:8 a=2g30PZIrAb8wCieTOIMA:9 a=ul9cdbp4aOFLsgKbc677:22 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=tromey.com; s=default; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date:References :Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=ipxbpYjbMcwYs6bGyqXZUn2GsCaNZmjODwaGd4kvnfM=; b=bRhJ1EDUEXkW6rgPCuGcMx5LcC RM4eUfC0LNtl4IP33QZiLOqogdPsKhYExGFGR8SWEvqq+BTg271FXBE890J71SEIIys2sVjuFvVq+ ySgA1yoleoYAEcSOSG36xvgeZ; Received: from 97-122-76-186.hlrn.qwest.net ([97.122.76.186]:39118 helo=murgatroyd) by box5379.bluehost.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1pDWIz-003nHK-0C; Thu, 05 Jan 2023 12:53:37 -0700 From: Tom Tromey To: Bruno Larsen via Gdb-patches Cc: Bruno Larsen Subject: Re: [PATCH v4] gdb/c++: Detect ambiguous variables in imported namespaces References: <20221221161253.2127653-1-blarsen@redhat.com> X-Attribution: Tom Date: Thu, 05 Jan 2023 12:53:34 -0700 In-Reply-To: <20221221161253.2127653-1-blarsen@redhat.com> (Bruno Larsen via Gdb-patches's message of "Wed, 21 Dec 2022 17:12:54 +0100") Message-ID: <871qo8ep1d.fsf@tromey.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - box5379.bluehost.com X-AntiAbuse: Original Domain - sourceware.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - tromey.com X-BWhitelist: no X-Source-IP: 97.122.76.186 X-Source-L: No X-Exim-ID: 1pDWIz-003nHK-0C X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: 97-122-76-186.hlrn.qwest.net (murgatroyd) [97.122.76.186]:39118 X-Source-Auth: tom+tromey.com X-Email-Count: 10 X-Source-Cap: ZWx5bnJvYmk7ZWx5bnJvYmk7Ym94NTM3OS5ibHVlaG9zdC5jb20= X-Local-Domain: yes X-Spam-Status: No, score=-3022.1 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,JMQ_SPF_NEUTRAL,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_PASS,TXREP autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: >>>>> "Bruno" == Bruno Larsen via Gdb-patches writes: Bruno> When running gdb.cp/nsusing.cc and stopping at line 17, we can ask GDB Bruno> to print x and get a compiler-dependent answer. Using gcc 12.2.1, GDB Bruno> will print M::x, and using clang 16.0.0 prints N::x. Not only is this Bruno> behavior confusing to users, it is also not consistent with compiler Bruno> behaviors, which would warn that using x is ambiguous at this point. Thank you. This is ok. Tom