[{"id":3680789,"web_url":"http://patchwork.ozlabs.org/comment/3680789/","msgid":"","list_archive_url":null,"date":"2026-04-22T18:16:07","subject":"[SUMMARY] Re: [PATCH v1 0/2] libstdc++: Make debug iterator pointer\n sequence const [PR116369]","submitter":{"id":93220,"url":"http://patchwork.ozlabs.org/api/people/93220/","name":"François Dumont via Sourceware Forge","email":"forge-bot+fdumont@forge-stage.sourceware.org"},"content":"This is a summary of discussions relative to the merge request created by François Dumont (fdumont) titled\nlibstdc++: Make debug iterator pointer sequence const [PR116369]\nsince its creation.\n\nDescription: In revision a35dd276cb the debug sequence\nhave been made mutable to allow attach iterators to const containers.\nThis change completes this fix by also declaring debug unordered container\nmembers mutable.\n\nAdditionally the debug iterator sequence is now a pointer-to-const and so\n_Safe_sequence_base _M_attach and all other methods are const qualified.\nNot-const methods exported are preserved for abi backward compatibility. The\nnew const methods are calling the latter thanks to a safe use of const_cast.\n\nlibstdc++-v3/ChangeLog:\n\n\tPR c++/116369\n\t* include/debug/safe_base.h\n\t(_Safe_iterator_base::_M_sequence): Declare as pointer-to-const.\n\t(_Safe_iterator_base::_M_attach, _M_attach_single): New, take pointer-to-const\n\t_Safe_sequence_base.\n\t(_Safe_sequence_base::_M_detach_all, _M_detach_singular, _M_revalidate_singular)\n\t(_M_swap, _M_get_mutex): New, const qualified.\n\t(_Safe_sequence_base::_M_attach, _M_attach_single, _M_detach, _M_detach_single):\n\tconst qualify.\n\t* include/debug/safe_container.h (_Safe_container<>::_M_cont): Add const qualifier.\n\t(_Safe_container<>::_M_swap_base): New.\n\t(_Safe_container(_Safe_container&&, const _Alloc&, std::false_type)):\n\tAdapt to use latter.\n\t(_Safe_container<>::operator=(_Safe_container&&)): Likewise.\n\t(_Safe_container<>::_M_swap): Likewise and take parameter as const reference.\n\t* include/debug/safe_unordered_base.h\n\t(_Safe_local_iterator_base::_M_safe_container): New.\n\t(_Safe_local_iterator_base::_Safe_local_iterator_base): Take\n\t_Safe_unordered_container_base as pointer-to-const.\n\t(_Safe_unordered_container_base::_M_attach, _M_attach_single): New, take\n\tcontainer as _Safe_unordered_container_base pointer-to-const.\n\t(_Safe_unordered_container_base::_M_local_iterators, _M_const_local_iterators):\n\tAdd mutable.\n\t(_Safe_unordered_container_base::_M_detach_all, _M_swap): New, const qualify.\n\t(_Safe_unordered_container_base::_M_attach_local, _M_attach_local_single)\n\t(_M_detach_local, _M_detach_local_single): Add const qualifier.\n\t* include/debug/safe_iterator.h (_Safe_iterator<>::_M_attach, _M_attach_single):\n\tTake _Safe_sequence_base as pointer-to-const.\n\t(_Safe_iterator<>::_M_get_sequence): Add const_cast and comment about it.\n\t* include/debug/safe_local_iterator.h (_Safe_local_iterator<>): Replace usages\n\tof _M_sequence member by _M_safe_container().\n\t(_Safe_local_iterator<>::_M_attach, _M_attach_single): Take\n\t_Safe_unordered_container_base as pointer-to-const.\n\t(_Safe_local_iterator<>::_M_get_sequence): Rename into...\n\t(_Safe_local_iterator<>::_M_get_ucontainer): ...this. Add necessary const_cast and\n\tcomment to explain it.\n\t(_Safe_local_iterator<>::_M_is_begin, _M_is_end): Adapt.\n\t* include/debug/safe_local_iterator.tcc: Adapt.\n\t* include/debug/safe_sequence.h\n\t(_Safe_sequence<>::_M_invalidate_if, _M_transfer_from_if): Add const qualifier.\n\t* include/debug/safe_sequence.tcc: Adapt.\n\n\t* include/debug/deque (std::__debug::deque::erase): Adapt to use new const\n\tqualified methods.\n\t* include/debug/formatter.h: Adapt.\n\t* include/debug/forward_list (_Safe_forward_list::_M_this): Add const\n\tqualification.\n\t(_Safe_forward_list::_M_swap_aux): Rename into...\n\t(_Safe_forward_list::_S_swap_aux): ...this and take sequence as const reference.\n\t(forward_list<>::resize): Adapt to use const methods.\n\t* include/debug/list (list<>::resize): Likewise.\n\t* src/c++11/debug.cc: Adapt to const qualification.\n\t* testsuite/util/testsuite_containers.h\n\t(forward_members_unordered::forward_members_unordered): Add check on local_iterator\n\tconversion to const_local_iterator.\n\t(forward_members::forward_members): Add check on iterator conversion to\n\tconst_iterator.\n\t* testsuite/23_containers/unordered_map/const_container.cc: New test case.\n\t* testsuite/23_containers/unordered_multimap/const_container.cc: New test case.\n\t* testsuite/23_containers/unordered_multiset/const_container.cc: New test case.\n\t* testsuite/23_containers/unordered_set/const_container.cc: New test case.\n\t* testsuite/23_containers/vector/debug/mutex_association.cc: Adapt.\n\n\nThe full and up to date discussion can be found at https://forge.sourceware.org/gcc/gcc-TEST/pulls/47\n\nThe merge request has been closed without being merged directly on the forge repository.\n\n\nOn 2025-07-08 17:31:55+00:00, François Dumont (fdumont) wrote:\n\nCommitted upstream as 2fd6f42c17a8040dbd3460ca34d93695dacf8575.\n\n\nOn 2026-04-22 18:15:14+00:00, Lichenor Forgejo Bot (forge-bot) wrote:\n\n\nVersion 1 of this pull request has been stored. It includes the following commits:\n- libstdc++: Make debug iterator pointer sequence const [PR116369] - a0baa7a2e250ab9464566f27c5a3d6f2595bb166\n- libstdc++: Fix const qualification of _GLIBCXX_DEBUG mode - cbedd5f8679310d76c68edb1a00ad63f0882bded\n\n\n\nOn 2026-04-22 18:16:03+00:00, Lichenor Forgejo Bot (forge-bot) wrote:\n\nSent patch series version 1 containing 2 patches to gcc-patches mailing list .\n[Cover letter](https://inbox.sourceware.org/gcc-patches/bmm.hhuo67grsc.gcc.gcc-TEST.fdumont.47.1.0@forge-stage.sourceware.org)","headers":{"Return-Path":"","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 4g16yC6s37z1y2d\n\tfor ; Thu, 23 Apr 2026 04:22:11 +1000 (AEST)","from vm01.sourceware.org (localhost [127.0.0.1])\n\tby sourceware.org (Postfix) with ESMTP id E9BEC442FC0D\n\tfor ; Wed, 22 Apr 2026 18:22:09 +0000 (GMT)","from forge-stage.sourceware.org (vm08.sourceware.org [38.145.34.39])\n by sourceware.org (Postfix) with ESMTPS id 665734D108D8\n for ; Wed, 22 Apr 2026 18:16:19 +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 49B1143427\n for ; Wed, 22 Apr 2026 18:16:07 +0000 (UTC)"],"DKIM-Filter":["OpenDKIM Filter v2.11.0 sourceware.org E9BEC442FC0D","OpenDKIM Filter v2.11.0 sourceware.org 665734D108D8"],"DMARC-Filter":"OpenDMARC Filter v1.4.2 sourceware.org 665734D108D8","ARC-Filter":"OpenARC Filter v1.0.0 sourceware.org 665734D108D8","ARC-Seal":"i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1776881779; cv=none;\n b=j3B6hQthwHXRUx2z/WFDdDOyBT9zBglfvqwbOuuxwJ6kiPiIDMmmBRAFuybNLqKxIZx34oJfZFGRfm0S2lmyOe6vOvuaqH5uh2FtvxrwiCgpmo9nCz6DXXMaBnCn5hqRahtqML2KKmdBzt4+uoPXHfcR9PCKQ1T0Dpmz4apz4hQ=","ARC-Message-Signature":"i=1; a=rsa-sha256; d=sourceware.org; s=key;\n t=1776881779; c=relaxed/simple;\n bh=t3sYTLWCfqoUbxVczn6oe2GIyhsBdUyMPCwDcRc6uFw=;\n h=Subject:From:To:Message-ID:MIME-Version:Date;\n b=ssRw0eCpQLSifotAXk29G0tnekScTfRJ/2V0VJQbPDzjT9Hv7RoBiywm0AnD7vSIziOxaC+taU4gJbtV7048R9Nx45YWoX/LPtV+zh51oagd9bE6RVPH9JTl21R5cf5qZ7/Y/xSo5eYuirVJvTLsUPYkBNH/OCUY/myoZgpGEWY=","ARC-Authentication-Results":"i=1; server2.sourceware.org","Subject":"[SUMMARY] Re: [PATCH v1 0/2] libstdc++: Make debug iterator pointer\n sequence const [PR116369]","From":"=?utf-8?b?RnJhbsOnb2lz?= Dumont via Sourceware Forge\n ","To":"gcc-patches mailing list ","In-Reply-To":"\n ","Message-ID":"\n ","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/47","Content-Type":"text/plain; charset=\"utf-8\"","Content-Transfer-Encoding":"quoted-printable","MIME-Version":"1.0","Date":"Wed, 22 Apr 2026 18:16:07 +0000 (UTC)","X-BeenThere":"gcc-patches@gcc.gnu.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"Gcc-patches mailing list ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org"}},{"id":3680792,"web_url":"http://patchwork.ozlabs.org/comment/3680792/","msgid":"","list_archive_url":null,"date":"2026-04-22T18:15:14","subject":"Re: [PATCH v1 0/2] libstdc++: Make debug iterator pointer sequence\n const [PR116369]","submitter":{"id":93212,"url":"http://patchwork.ozlabs.org/api/people/93212/","name":"Lichenor Forgejo Bot via Sourceware Forge","email":"forge-bot+forge-bot@forge-stage.sourceware.org"},"content":"\nVersion 1 of this pull request has been stored. It includes the following commits:\n- libstdc++: Make debug iterator pointer sequence const [PR116369] - a0baa7a2e250ab9464566f27c5a3d6f2595bb166\n- libstdc++: Fix const qualification of _GLIBCXX_DEBUG mode - cbedd5f8679310d76c68edb1a00ad63f0882bded\n\n\n--\nhttps://forge.sourceware.org/gcc/gcc-TEST/pulls/47#issuecomment-5624","headers":{"Return-Path":"","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 4g16zj6yWpz1y2d\n\tfor ; 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charset=\"utf-8\"","Content-Transfer-Encoding":"quoted-printable","MIME-Version":"1.0","X-BeenThere":"gcc-patches@gcc.gnu.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"Gcc-patches mailing list ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org"}},{"id":3680796,"web_url":"http://patchwork.ozlabs.org/comment/3680796/","msgid":"","list_archive_url":null,"date":"2025-07-08T17:31:55","subject":"Re: [PATCH v1 0/2] libstdc++: Make debug iterator pointer sequence\n const [PR116369]","submitter":{"id":93220,"url":"http://patchwork.ozlabs.org/api/people/93220/","name":"François Dumont via Sourceware Forge","email":"forge-bot+fdumont@forge-stage.sourceware.org"},"content":"Committed upstream as 2fd6f42c17a8040dbd3460ca34d93695dacf8575.\n\n--\nhttps://forge.sourceware.org/gcc/gcc-TEST/pulls/47#issuecomment-1059","headers":{"Return-Path":"","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; 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server2.sourceware.org","Subject":"Re: [PATCH v1 0/2] libstdc++: Make debug iterator pointer sequence\n const [PR116369]","From":"=?utf-8?b?RnJhbsOnb2lz?= Dumont via Sourceware Forge\n ","To":"gcc-patches mailing list ","Date":"Tue, 08 Jul 2025 17:31:55 +0000","Message-ID":"\n ","In-Reply-To":"\n ","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/47","X-Comment":"\n https://forge.sourceware.org/gcc/gcc-TEST/pulls/47#issuecomment-1059","Content-Type":"text/plain; charset=\"utf-8\"","Content-Transfer-Encoding":"7bit","MIME-Version":"1.0","X-BeenThere":"gcc-patches@gcc.gnu.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"Gcc-patches mailing list ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org"}},{"id":3680800,"web_url":"http://patchwork.ozlabs.org/comment/3680800/","msgid":"","list_archive_url":null,"date":"2026-04-22T18:16:03","subject":"Re: [PATCH v1 0/2] libstdc++: Make debug iterator pointer sequence\n const [PR116369]","submitter":{"id":93212,"url":"http://patchwork.ozlabs.org/api/people/93212/","name":"Lichenor Forgejo Bot via Sourceware Forge","email":"forge-bot+forge-bot@forge-stage.sourceware.org"},"content":"Sent patch series version 1 containing 2 patches to gcc-patches mailing list .\n[Cover letter](https://inbox.sourceware.org/gcc-patches/bmm.hhuo67grsc.gcc.gcc-TEST.fdumont.47.1.0@forge-stage.sourceware.org)\n\n--\nhttps://forge.sourceware.org/gcc/gcc-TEST/pulls/47#issuecomment-5627","headers":{"Return-Path":"","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; 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server2.sourceware.org","Subject":"Re: [PATCH v1 0/2] libstdc++: Make debug iterator pointer sequence\n const [PR116369]","From":"Lichenor Forgejo Bot via Sourceware Forge\n ","To":"gcc-patches mailing list ","Date":"Wed, 22 Apr 2026 18:16:03 +0000","Message-ID":"\n ","In-Reply-To":"\n ","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/47","X-Comment":"\n https://forge.sourceware.org/gcc/gcc-TEST/pulls/47#issuecomment-5627","Content-Type":"text/plain; charset=\"utf-8\"","Content-Transfer-Encoding":"quoted-printable","MIME-Version":"1.0","X-BeenThere":"gcc-patches@gcc.gnu.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"Gcc-patches mailing list ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org"}}]