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GET /api/patches/2226774/?format=api
{ "id": 2226774, "url": "http://patchwork.ozlabs.org/api/patches/2226774/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/patch/bmm.hhup55wx16.gcc.gcc-TEST.tkaminsk.85.1.4@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.85.1.4@forge-stage.sourceware.org>", "list_archive_url": null, "date": "2026-04-22T18:49:41", "name": "[v1,04/10] Remove isConst template parameter in favor of separate specialzation for const _Tp.", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "b472bddb70453ac0fd20b14ea5d9835fca827a40", "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.85.1.4@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/2226774/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2226774/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=38.145.34.32; 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 [38.145.34.32])\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 4g18bh0ZTWz1y2d\n\tfor <incoming@patchwork.ozlabs.org>; Thu, 23 Apr 2026 05:36:16 +1000 (AEST)", "from vm01.sourceware.org (localhost [127.0.0.1])\n\tby sourceware.org (Postfix) with ESMTP id 191DA44BB373\n\tfor <incoming@patchwork.ozlabs.org>; Wed, 22 Apr 2026 19:36:14 +0000 (GMT)", "from forge-stage.sourceware.org (vm08.sourceware.org [38.145.34.39])\n by sourceware.org (Postfix) with ESMTPS id 3473040AB6A3\n for <gcc-patches@gcc.gnu.org>; Wed, 22 Apr 2026 18:51:08 +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 0D51443593\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 191DA44BB373", "OpenDKIM Filter v2.11.0 sourceware.org 3473040AB6A3" ], "DMARC-Filter": "OpenDMARC Filter v1.4.2 sourceware.org 3473040AB6A3", "ARC-Filter": "OpenARC Filter v1.0.0 sourceware.org 3473040AB6A3", "ARC-Seal": "i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1776883868; cv=none;\n b=AjswA36bao7f5TwFx9eUVjUrYhs3mSGxOddnBZwcgYpXwtOeR6F6P7a2ypB5/rjFdHg83bGz+Uj4hH0RfciDbfO7alB9PCzUCJiwICRiXqVs7wmqcgMjTPk/lTjw9gtBLIDSiN+fbQz66ijMswyTjQjdncXhtxj8KpqIy2cwmYM=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=sourceware.org; s=key;\n t=1776883868; c=relaxed/simple;\n bh=gQReSBvrp9d5IMX0CLGiVKoahH6dX4TNsLOufVwhTDc=;\n h=From:Date:Subject:MIME-Version:To:Message-ID;\n b=D3c3swWAlDlJDO7mJ7xkLvwzZ3LZLXBB+6EJ45EBv1k3tuRVw6J7fWMvm4/DgTGyHC8Qt91KfYjZPFRxV/LeWHL/mUNh73AqpCv+qSExlrp7OFs/5hdpIt4I5z8Te0Zl5e+N6mbFvgc8apaX+eR4SGmMXkHn4YbeKk5sUCPzGlc=", "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 18:49:41 +0000", "Subject": "[PATCH v1 04/10] Remove isConst template parameter in favor of\n separate specialzation for const _Tp.", "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.85.1.4@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/e700db27a00c37f9d8ac7429dbbc768aa2714461", "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\nWe already have had 3 separate specializations for integers/floating\n(difference_type is value_type), pointers (difference_type is ptrdiff_t)\nand rest. This requires having 4, and seems easier.\n---\n libstdc++-v3/include/bits/atomic_base.h | 60 ++++++++++++++-----------\n 1 file changed, 33 insertions(+), 27 deletions(-)", "diff": "diff --git a/libstdc++-v3/include/bits/atomic_base.h b/libstdc++-v3/include/bits/atomic_base.h\nindex 4caa9e30b4dc..b124aae626a0 100644\n--- a/libstdc++-v3/include/bits/atomic_base.h\n+++ b/libstdc++-v3/include/bits/atomic_base.h\n@@ -1667,48 +1667,30 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION\n };\n \n template<typename _Tp,\n-\t bool = is_const_v<_Tp>,\n \t bool = is_integral_v<_Tp> && !is_same_v<remove_cv_t<_Tp>, bool>,\n \t bool = is_floating_point_v<_Tp>,\n \t bool = is_pointer_v<_Tp>>\n struct __atomic_ref;\n \n- // base classes for const qualified types\n+ // base class for non-integral, non-floating-point, non-pointer types\n template<typename _Tp>\n- struct __atomic_ref<_Tp, true, false, false, false>\n+ struct __atomic_ref<_Tp, false, false, false>\n : __atomic_ref_base<_Tp>\n {\n using __atomic_ref_base<_Tp>::__atomic_ref_base;\n+ using __atomic_ref_base<_Tp>::operator=;\n };\n \n template<typename _Tp>\n- struct __atomic_ref<_Tp, true, false, false, true>\n- : __atomic_ref_base<_Tp>\n- {\n- using difference_type = ptrdiff_t;\n- using __atomic_ref_base<_Tp>::__atomic_ref_base;\n- };\n-\n- template<typename _Tp, bool _IsIntegral, bool _IsFloatingPoint>\n- struct __atomic_ref<_Tp, true, _IsIntegral, _IsFloatingPoint, false>\n- : __atomic_ref_base<_Tp>\n+ struct __atomic_ref<const _Tp, false, false, false>\n+ : __atomic_ref_base<const _Tp>\n {\n- using difference_type = typename __atomic_ref_base<_Tp>::value_type;\n- using __atomic_ref_base<_Tp>::__atomic_ref_base;\n+ using __atomic_ref_base<const _Tp>::__atomic_ref_base;\n };\n \n- // base class for non-integral, non-floating-point, non-pointer types\n- template<typename _Tp>\n- struct __atomic_ref<_Tp, false, false, false, false>\n- : __atomic_ref_base<_Tp>\n- {\n- using __atomic_ref_base<_Tp>::__atomic_ref_base;\n- using __atomic_ref_base<_Tp>::operator=;\n- };\n-\n // base class for atomic_ref<integral-type>\n template<typename _Tp>\n- struct __atomic_ref<_Tp, false, true, false, false>\n+ struct __atomic_ref<_Tp, true, false, false>\n : __atomic_ref_base<_Tp>\n {\n using value_type = typename __atomic_ref_base<_Tp>::value_type;\n@@ -1779,9 +1761,17 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION\n { return __atomic_impl::__xor_fetch(this->_M_ptr, __i); }\n };\n \n+ template<typename _Tp>\n+ struct __atomic_ref<const _Tp, true, false, false>\n+ : __atomic_ref_base<const _Tp>\n+ {\n+ using difference_type = typename __atomic_ref_base<const _Tp>::value_type;\n+ using __atomic_ref_base<const _Tp>::__atomic_ref_base;\n+ };\n+\n // base class for atomic_ref<floating-point-type>\n template<typename _Fp>\n- struct __atomic_ref<_Fp, false, false, true, false>\n+ struct __atomic_ref<_Fp, false, true, false>\n : __atomic_ref_base<_Fp>\n {\n using value_type = typename __atomic_ref_base<_Fp>::value_type;\n@@ -1809,9 +1799,17 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION\n { return __atomic_impl::__sub_fetch_flt(this->_M_ptr, __i); }\n };\n \n+ template<typename _Fp>\n+ struct __atomic_ref<const _Fp, false, true, false>\n+ : __atomic_ref_base<const _Fp>\n+ {\n+ using difference_type = typename __atomic_ref_base<const _Fp>::value_type;\n+ using __atomic_ref_base<const _Fp>::__atomic_ref_base;\n+ };\n+\n // base class for atomic_ref<pointer-type>\n template<typename _Pt>\n- struct __atomic_ref<_Pt, false, false, false, true>\n+ struct __atomic_ref<_Pt, false, false, true>\n : __atomic_ref_base<_Pt>\n {\n using value_type = typename __atomic_ref_base<_Pt>::value_type;\n@@ -1870,6 +1868,14 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION\n \treturn __d * sizeof(_Et);\n }\n };\n+\n+ template<typename _Pt>\n+ struct __atomic_ref<const _Pt, false, false, true>\n+ : __atomic_ref_base<const _Pt>\n+ {\n+ using difference_type = ptrdiff_t;\n+ using __atomic_ref_base<const _Pt>::__atomic_ref_base;\n+ };\n #endif // C++2a\n \n /// @endcond\n", "prefixes": [ "v1", "04/10" ] }