{"id":2226891,"url":"http://patchwork.ozlabs.org/api/covers/2226891/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/cover/bmm.hhupkhd5tk.gcc.gcc-TEST.fdumont.128.1.0@forge-stage.sourceware.org/","project":{"id":17,"url":"http://patchwork.ozlabs.org/api/projects/17/?format=json","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":"","list_archive_url":null,"date":"2026-04-22T19:05:12","name":"[v1,0/1] libstdc++: Fix std::erase_if behavior for std::__debug::deque","submitter":{"id":93220,"url":"http://patchwork.ozlabs.org/api/people/93220/?format=json","name":"François Dumont via Sourceware Forge","email":"forge-bot+fdumont@forge-stage.sourceware.org"},"mbox":"http://patchwork.ozlabs.org/project/gcc/cover/bmm.hhupkhd5tk.gcc.gcc-TEST.fdumont.128.1.0@forge-stage.sourceware.org/mbox/","series":[{"id":501110,"url":"http://patchwork.ozlabs.org/api/series/501110/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/list/?series=501110","date":"2026-04-22T19:05:12","name":"libstdc++: Fix std::erase_if behavior for std::__debug::deque","version":1,"mbox":"http://patchwork.ozlabs.org/series/501110/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/covers/2226891/comments/","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=38.145.34.32; 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server2.sourceware.org","From":"=?utf-8?q?Fran=C3=A7ois_Dumont_via_Sourceware_Forge?=\n ","Date":"Wed, 22 Apr 2026 19:05:12 +0000","Subject":"[PATCH v1 0/1] libstdc++: Fix std::erase_if behavior for\n std::__debug::deque","MIME-Version":"1.0","Content-Type":"text/plain; charset=UTF-8","Content-Transfer-Encoding":"8bit","To":"gcc-patches mailing list ","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/128","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 ","Reply-To":"gcc-patches mailing list ,\n fdumont@gcc.gnu.org","Errors-To":"gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org"},"content":"Hi gcc-patches mailing list,\nFrançois Dumont via Sourceware Forge has requested that the following forgejo pull request\nbe published on the mailing list.\n\nCreated on: 2025-12-03 18:31:32+00:00\nLatest update: 2025-12-04 21:15:12+00:00\nChanges: 0 changed files, 0 additions, 0 deletions\nHead revision: fdumont/gcc-TEST ref refs/pull/128/head commit 371ef411dcbfab7be7fed551d79adba657a39e9c\nBase revision: gcc/gcc-TEST ref trunk commit dce0d564d742617f71297c88e4a1c0d6038f2c47 r16-5875-gdce0d564d74261\nMerge base: dce0d564d742617f71297c88e4a1c0d6038f2c47\nFull diff url: https://forge.sourceware.org/gcc/gcc-TEST/pulls/128.diff\nDiscussion: https://forge.sourceware.org/gcc/gcc-TEST/pulls/128\nRequested Reviewers:\n\nstd::erase and std::erase_if are broken for users directly referencing\n__gnu_debug::deque in their code that is to say without activating the\n_GLIBCXX_DEBUG mode. The iterators potentially invalidated by the erase\noperations are not detected by the __gnu_debug::deque container and so\nwon't be reported as invalidated.\n\nWe need explicit std::erase and std::erase_if implementations for\nstd::__debug::deque which will work also when _GLIBCXX_DEBUG mode is\nactivated.\n\nlibstdc++-v3/ChangeLog:\n\n\t* include/debug/deque\n\t(std::erase_if<>(std::__debug::deque<>&, _Pred): New.\n\t(std::erase<>(std::__debug::deque<>&, const _Up&): New.\n\t* include/std/deque (std::erase_if(std::deque<>&, _Pred)): Remove\n\t_GLIBCXX_DEBUG code.\n\t* testsuite/23_containers/deque/debug/erase.cc: New test case.\n\t* testsuite/23_containers/deque/debug/invalidation/erase.cc: New test case.\n\n\nChanged files:\n- A: libstdc++-v3/testsuite/23_containers/deque/debug/erase.cc\n- A: libstdc++-v3/testsuite/23_containers/deque/debug/invalidation/erase.cc\n- M: libstdc++-v3/include/debug/deque\n- M: libstdc++-v3/include/std/deque\n\n\nFrançois Dumont (1):\n libstdc++: Fix std::erase_if behavior for std::__debug::deque\n\n libstdc++-v3/include/debug/deque | 28 +++++++++++++++++++\n libstdc++-v3/include/std/deque | 17 +++++------\n .../23_containers/deque/debug/erase.cc | 27 ++++++++++++++++++\n .../deque/debug/invalidation/erase.cc | 28 +++++++++++++++++++\n 4 files changed, 90 insertions(+), 10 deletions(-)\n create mode 100644 libstdc++-v3/testsuite/23_containers/deque/debug/erase.cc\n create mode 100644 libstdc++-v3/testsuite/23_containers/deque/debug/invalidation/erase.cc"}