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[8.43.85.97]) by mx.google.com with ESMTPS id k17-20020a0c9711000000b0067f760ed499si6293154qvd.339.2024.01.22.13.16.51 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Jan 2024 13:16:51 -0800 (PST) Received-SPF: pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 8.43.85.97 as permitted sender) client-ip=8.43.85.97; Authentication-Results: mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=aSOubZJ9; arc=pass (i=1); spf=pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 8.43.85.97 as permitted sender) smtp.mailfrom="gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 3B7BE3858D3C for ; Mon, 22 Jan 2024 21:16:51 +0000 (GMT) X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by sourceware.org (Postfix) with ESMTPS id 501233858D20 for ; Mon, 22 Jan 2024 21:16:10 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 501233858D20 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=redhat.com ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 501233858D20 Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1705958171; cv=none; b=AHQVd5rrNcKBf9L5aikWQKnmznBIVRk34mtSgYL7isfgmQX23cYkbhdAoeTAA1sPuralZcZ079rqX0ozqCmbwz3doAJoOOSD6Vy1rT4mvM/vFMJ1tvoTxfuA58vR8wiAsP0h0PvSGSNHd3vab5cJfwnEsR/Dtw/jYZ9EORAPRpI= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1705958171; c=relaxed/simple; bh=xvijkoWQKnwzgg/iZwqulwQo9ov7hfVA09OabuXTkUk=; h=DKIM-Signature:From:To:Subject:Date:Message-ID:MIME-Version; b=Fk4s1b5X1QaMiyP+LksrSga24SyZ3Ht5MPX5fbxLm3Jlgi+GTFGZSm/Nv6WLNvjnVqDIWCz+pnhd4JTZ2D3TsNGNNQtqvCMwWiSt0kBkj8wb6r3qigoxz2GdKy12z2/03mwFDcolOTaUY+osDpjFVkCLs58x2dKKbRCzh8YQYjc= ARC-Authentication-Results: i=1; server2.sourceware.org DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1705958170; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=8QSce5bgUwklu798/ocr+Hs6UPz6SZ2Vg+xJsTWOgP0=; b=aSOubZJ9gJh/8W0hhhrLlc45fSRchOpJ41+ZwB9KOu8gNalDFIihW9Uc9N5g1gFBPl2sxv QkyUHY/ht1IT9e/84fTbWyqsejnX3gTcZg0DoerVkLJ88ViE2Ml4P0KONk0XaMZ6ReBTm1 IkY/zh7IU5czzVL8adQvB6L63lOxkeE= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-298-7-8zueQBMKGR4k0BLblXlw-1; Mon, 22 Jan 2024 16:16:08 -0500 X-MC-Unique: 7-8zueQBMKGR4k0BLblXlw-1 Received: from smtp.corp.redhat.com (int-mx09.intmail.prod.int.rdu2.redhat.com [10.11.54.9]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 1F8DB3C02B6F for ; Mon, 22 Jan 2024 21:16:08 +0000 (UTC) Received: from pdp-11.lan (unknown [10.22.17.16]) by smtp.corp.redhat.com (Postfix) with ESMTP id 0732E492BC6 for ; Mon, 22 Jan 2024 21:16:08 +0000 (UTC) From: Marek Polacek To: GCC Patches Subject: [pushed] c++: extend Wdangling-reference17.C [PR109642] Date: Mon, 22 Jan 2024 16:16:05 -0500 Message-ID: <20240122211605.25352-1-polacek@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.9 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-Spam-Status: No, score=-12.9 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_NONE, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1788826837306686236 X-GMAIL-MSGID: 1788826837306686236 Tested x86_64-pc-linux-gnu, applying to trunk. -- >8 -- This patch extends g++.dg/warn/Wdangling-reference17.C with code from PR109642. I'm not creating a new test because this one already #includes the required headers. PR c++/109642 gcc/testsuite/ChangeLog: * g++.dg/warn/Wdangling-reference17.C: Additional testing. --- gcc/testsuite/g++.dg/warn/Wdangling-reference17.C | 12 ++++++++++++ 1 file changed, 12 insertions(+) base-commit: bc77c035c45bb224790b1c03d06a64c8a1cc51c5 diff --git a/gcc/testsuite/g++.dg/warn/Wdangling-reference17.C b/gcc/testsuite/g++.dg/warn/Wdangling-reference17.C index 223698422c2..8cda5dea444 100644 --- a/gcc/testsuite/g++.dg/warn/Wdangling-reference17.C +++ b/gcc/testsuite/g++.dg/warn/Wdangling-reference17.C @@ -4,6 +4,7 @@ #include #include +#include int main() { @@ -12,4 +13,15 @@ int main() { (void) i; } + + // From c++/109642. + const auto vec = std::vector{ 1, 2, 3 }; + const auto s = std::span{vec}; + + for ([[maybe_unused]] auto _ : s | std::views::take(2)) { } + + for ([[maybe_unused]] auto _ : vec | std::views::take(2)) { } + + const auto s_view = s | std::views::take(2); + for ([[maybe_unused]] auto _ : s_view) { } }