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GET /api/patches/2226780/?format=api
{ "id": 2226780, "url": "http://patchwork.ozlabs.org/api/patches/2226780/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/patch/bmm.hhup55wx16.gcc.gcc-TEST.tkaminsk.85.1.9@forge-stage.sourceware.org/", "project": { "id": 17, "url": "http://patchwork.ozlabs.org/api/projects/17/?format=api", "name": "GNU Compiler Collection", "link_name": "gcc", "list_id": "gcc-patches.gcc.gnu.org", "list_email": "gcc-patches@gcc.gnu.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<bmm.hhup55wx16.gcc.gcc-TEST.tkaminsk.85.1.9@forge-stage.sourceware.org>", "list_archive_url": null, "date": "2026-04-22T18:49:46", "name": "[v1,09/10] Apply non-cv for all standards, add negative tests for static asserts.", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "225d8a7f9d6f3becd0de731a49ce5bbe9fd441c7", "submitter": { "id": 93223, "url": "http://patchwork.ozlabs.org/api/people/93223/?format=api", "name": "tkaminsk via Sourceware Forge", "email": "forge-bot+tkaminsk@forge-stage.sourceware.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/gcc/patch/bmm.hhup55wx16.gcc.gcc-TEST.tkaminsk.85.1.9@forge-stage.sourceware.org/mbox/", "series": [ { "id": 501094, "url": "http://patchwork.ozlabs.org/api/series/501094/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/list/?series=501094", "date": "2026-04-22T18:49:39", "name": "WIP: libstdc++: add support for cv-qualified types in atomic_ref (P3323R1)", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/501094/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2226780/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2226780/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "gcc-patches@gcc.gnu.org" ], "Delivered-To": [ "patchwork-incoming@legolas.ozlabs.org", "gcc-patches@gcc.gnu.org" ], "Authentication-Results": [ "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org\n (client-ip=2620:52:6:3111::32; helo=vm01.sourceware.org;\n envelope-from=gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org;\n receiver=patchwork.ozlabs.org)", "sourceware.org; dmarc=none (p=none dis=none)\n header.from=forge-stage.sourceware.org", "sourceware.org;\n spf=pass smtp.mailfrom=forge-stage.sourceware.org", "server2.sourceware.org;\n arc=none smtp.remote-ip=38.145.34.39" ], "Received": [ "from vm01.sourceware.org (vm01.sourceware.org\n [IPv6:2620:52:6:3111::32])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4g18ds5Brcz1y2d\n\tfor <incoming@patchwork.ozlabs.org>; Thu, 23 Apr 2026 05:38:09 +1000 (AEST)", "from vm01.sourceware.org (localhost [127.0.0.1])\n\tby sourceware.org (Postfix) with ESMTP id E3C8D43216D5\n\tfor <incoming@patchwork.ozlabs.org>; Wed, 22 Apr 2026 19:38:07 +0000 (GMT)", "from forge-stage.sourceware.org (vm08.sourceware.org [38.145.34.39])\n by sourceware.org (Postfix) with ESMTPS id CB15D40A2C52\n for <gcc-patches@gcc.gnu.org>; Wed, 22 Apr 2026 18:51:10 +0000 (GMT)", "from forge-stage.sourceware.org (localhost [IPv6:::1])\n (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n key-exchange x25519 server-signature ECDSA (prime256v1) server-digest SHA256)\n (No client certificate requested)\n by forge-stage.sourceware.org (Postfix) with ESMTPS id 5250943598\n for <gcc-patches@gcc.gnu.org>; Wed, 22 Apr 2026 18:51:08 +0000 (UTC)" ], "DKIM-Filter": [ "OpenDKIM Filter v2.11.0 sourceware.org E3C8D43216D5", "OpenDKIM Filter v2.11.0 sourceware.org CB15D40A2C52" ], "DMARC-Filter": "OpenDMARC Filter v1.4.2 sourceware.org CB15D40A2C52", "ARC-Filter": "OpenARC Filter v1.0.0 sourceware.org CB15D40A2C52", "ARC-Seal": "i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1776883870; cv=none;\n b=e7LzzWexMaFfTntI6DjwBlqdBZXvIZGWalsaWzodrxgCIATAhLu7q9hWCM4bURpbI5nuUyfGhNIiMzQmRTC3zhl5eDNgkC/XI56+y9z1IUaNE+B98AeSPd4RmpKWWQGcOX1FjO48AR1/u2i+TLLTgRDsoWmzeGPLCR5tOs5WtCk=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=sourceware.org; s=key;\n t=1776883870; c=relaxed/simple;\n bh=r+FFHReGHhW+uK+0y9bEvY4u2hgvwspWCbvj3K0kyes=;\n h=From:Date:Subject:MIME-Version:To:Message-ID;\n b=X/+vhP1IIQpRT1kmB6PnMJuWqiAEf18YFkuWLq2xVWmgKzuWpgGxKiJzkn/oJr4gpSiRvTcm5+MBNQ+xkcbRD0IEAcp2BYDS7I2onIjwYIZF2B1Fm6JtM5vT1ES2+tZM9QI/ddfFbeyu6q5vOLPju6ECKNUkqwVIYRtRYMBGBwc=", "ARC-Authentication-Results": "i=1; server2.sourceware.org", "From": "tkaminsk via Sourceware Forge\n <forge-bot+tkaminsk@forge-stage.sourceware.org>", "Date": "Wed, 22 Apr 2026 18:49:46 +0000", "Subject": "[PATCH v1 09/10] Apply non-cv for all standards, add negative tests\n for static asserts.", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=UTF-8", "Content-Transfer-Encoding": "8bit", "To": "gcc-patches mailing list <gcc-patches@gcc.gnu.org>", "Message-ID": "\n <bmm.hhup55wx16.gcc.gcc-TEST.tkaminsk.85.1.9@forge-stage.sourceware.org>", "X-Mailer": "batrachomyomachia", "X-Pull-Request-Organization": "gcc", "X-Pull-Request-Repository": "gcc-TEST", "X-Pull-Request": "https://forge.sourceware.org/gcc/gcc-TEST/pulls/85", "References": "\n <bmm.hhup55wx16.gcc.gcc-TEST.tkaminsk.85.1.0@forge-stage.sourceware.org>", "In-Reply-To": "\n <bmm.hhup55wx16.gcc.gcc-TEST.tkaminsk.85.1.0@forge-stage.sourceware.org>", "X-Patch-URL": "\n https://forge.sourceware.org/tkaminsk/gcc/commit/1da54a341fbb1fc0393e526a4978c82ae2149b8f", "X-BeenThere": "gcc-patches@gcc.gnu.org", "X-Mailman-Version": "2.1.30", "Precedence": "list", "List-Id": "Gcc-patches mailing list <gcc-patches.gcc.gnu.org>", "List-Unsubscribe": "<https://gcc.gnu.org/mailman/options/gcc-patches>,\n <mailto:gcc-patches-request@gcc.gnu.org?subject=unsubscribe>", "List-Archive": "<https://gcc.gnu.org/pipermail/gcc-patches/>", "List-Post": "<mailto:gcc-patches@gcc.gnu.org>", "List-Help": "<mailto:gcc-patches-request@gcc.gnu.org?subject=help>", "List-Subscribe": "<https://gcc.gnu.org/mailman/listinfo/gcc-patches>,\n <mailto:gcc-patches-request@gcc.gnu.org?subject=subscribe>", "Reply-To": "gcc-patches mailing list <gcc-patches@gcc.gnu.org>,\n tkaminsk@gcc.gnu.org", "Errors-To": "gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org" }, "content": "From: Tomasz Kamiński <tkaminsk@redhat.com>\n\n---\n libstdc++-v3/include/std/atomic | 3 +-\n .../atomic/requirements/types_neg.cc | 4 ++-\n .../29_atomics/atomic_ref/requirements_neg.cc | 34 +++++++++++++++++++\n 3 files changed, 39 insertions(+), 2 deletions(-)\n create mode 100644 libstdc++-v3/testsuite/29_atomics/atomic_ref/requirements_neg.cc", "diff": "diff --git a/libstdc++-v3/include/std/atomic b/libstdc++-v3/include/std/atomic\nindex cb94cb5e7ca2..17b4e61b3319 100644\n--- a/libstdc++-v3/include/std/atomic\n+++ b/libstdc++-v3/include/std/atomic\n@@ -216,13 +216,14 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION\n \n static_assert(sizeof(_Tp) > 0,\n \t\t \"Incomplete or zero-sized types are not supported\");\n+ static_assert(is_same_v<_Tp, remove_cv_t<_Tp>>,\n+\t\t \"cv-qualified types are not supported\");\n \n #if __cplusplus > 201703L\n static_assert(is_copy_constructible_v<_Tp>);\n static_assert(is_move_constructible_v<_Tp>);\n static_assert(is_copy_assignable_v<_Tp>);\n static_assert(is_move_assignable_v<_Tp>);\n- static_assert(is_same_v<_Tp, remove_cv_t<_Tp>>);\n #endif\n \n public:\ndiff --git a/libstdc++-v3/testsuite/29_atomics/atomic/requirements/types_neg.cc b/libstdc++-v3/testsuite/29_atomics/atomic/requirements/types_neg.cc\nindex cfe44d255ca2..b9105481006f 100644\n--- a/libstdc++-v3/testsuite/29_atomics/atomic/requirements/types_neg.cc\n+++ b/libstdc++-v3/testsuite/29_atomics/atomic/requirements/types_neg.cc\n@@ -19,7 +19,9 @@\n \n #include <atomic>\n \n-std::atomic<const int> a; // { dg-error \"here\" }\n+std::atomic<const int> ca; // { dg-error \"here\" }\n+std::atomic<volatile int> va; // { dg-error \"here\" } \n+std::atomic<const volatile int> cva; // { dg-error \"here\" } \n // { dg-error \"assignment to read-only type\" \"\" { target *-*-* } 0 }\n \n struct MoveOnly\ndiff --git a/libstdc++-v3/testsuite/29_atomics/atomic_ref/requirements_neg.cc b/libstdc++-v3/testsuite/29_atomics/atomic_ref/requirements_neg.cc\nnew file mode 100644\nindex 000000000000..9aa4123a0654\n--- /dev/null\n+++ b/libstdc++-v3/testsuite/29_atomics/atomic_ref/requirements_neg.cc\n@@ -0,0 +1,34 @@\n+// { dg-do compile { target c++20 } }\n+\n+#include <atomic>\n+\n+template<size_t N>\n+struct NonTrivial\n+{\n+ NonTrivial() = default;\n+ NonTrivial(NonTrivial const&) { }; \n+};\n+\n+template<size_t N>\n+NonTrivial<N> ntv;\n+\n+std::atomic_ref<NonTrivial<0>> nt(ntv<0>); // { dg-error \"here\" }\n+std::atomic_ref<const NonTrivial<1>> cnt(ntv<1>); // { dg-error \"here\" }\n+std::atomic_ref<volatile NonTrivial<2>> vnt(ntv<2>); // { dg-error \"here\" }\n+std::atomic_ref<const volatile NonTrivial<3>> cvnt(ntv<3>); // { dg-error \"here\" }\n+\n+template<size_t N>\n+struct NonLockFree\n+{\n+ char c[1024 + N];\n+};\n+\n+template<size_t N>\n+NonLockFree<N> nlfv;\n+\n+std::atomic_ref<NonLockFree<0>> nlf(nlfv<0>);\n+std::atomic_ref<const NonLockFree<1>> cnlf(nlfv<1>);\n+std::atomic_ref<volatile NonLockFree<2>> vnlf(nlfv<2>); // { dg-error \"here\" }\n+std::atomic_ref<const volatile NonLockFree<3>> cvnlf(nlfv<3>); // { dg-error \"here\" }\n+\n+// { dg-error \"static assertion failed\" \"\" { target *-*-* } 0 }\n", "prefixes": [ "v1", "09/10" ] }