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{ "id": 2226205, "url": "http://patchwork.ozlabs.org/api/covers/2226205/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/cover/bmm.hhub8n5f78.gcc.gcc-TEST.redi.15.1.0@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.hhub8n5f78.gcc.gcc-TEST.redi.15.1.0@forge-stage.sourceware.org>", "list_archive_url": null, "date": "2026-04-22T10:25:09", "name": "[v1,00/12] WIP: libstdc++: Refactor hash table code", "submitter": { "id": 93210, "url": "http://patchwork.ozlabs.org/api/people/93210/?format=api", "name": "Jonathan Wakely via Sourceware Forge", "email": "forge-bot+redi@forge-stage.sourceware.org" }, "mbox": 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"Message-ID": "\n <bmm.hhub8n5f78.gcc.gcc-TEST.redi.15.1.0@forge-stage.sourceware.org>", "X-Mailer": "batrachomyomachia", "X-Requested-Reviewer": "fdumont", "X-Pull-Request-Organization": "gcc", "X-Pull-Request-Repository": "gcc-TEST", "X-Pull-Request": "https://forge.sourceware.org/gcc/gcc-TEST/pulls/15", "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>, redi@gcc.gnu.org", "Errors-To": "gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org" }, "content": "Hi gcc-patches mailing list,\nJonathan Wakely via Sourceware Forge <forge-bot+redi@forge-stage.sourceware.org> has requested that the following forgejo pull request\nbe published on the mailing list.\n\nCreated on: 2024-11-01 21:23:45+00:00\nLatest update: 2025-08-13 07:23:55+00:00\nChanges: 0 changed files, 0 additions, 0 deletions\nHead revision: redi/gcc ref refs/pull/15/head commit 49b7f6d1492cc2aebc1454cbd5a2ff3f546d4cf4\nBase revision: gcc/gcc-TEST ref trunk commit 7e1d9f58858153bee4bcbab45aa862442859d958 r15-5047-g7e1d9f58858153\nMerge base: 7e1d9f58858153bee4bcbab45aa862442859d958\nFull diff url: https://forge.sourceware.org/gcc/gcc-TEST/pulls/15.diff\nDiscussion: https://forge.sourceware.org/gcc/gcc-TEST/pulls/15\nRequested Reviewers: fdumont\n\nThis fixes [PR libstdc++/115285](https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115285) ~and also optimizes the [PR libstdc++/96088](https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96088) case (only for `std::string` keys), without the problems caused by the original solution.~\n\nIt might be easier to review the individual commits, as most of them make small incremental changes that are (mostly) independent of the other commits. \"Refactor _Hashtable insertion\" is the big one, ~although the \"Optimize string lookup\" on is quite complex too (but is an optional optimization, so not required for correctness and conformance).~\n\n\nChanged files:\n- M: libstdc++-v3/include/bits/hashtable.h\n- M: libstdc++-v3/include/bits/hashtable_policy.h\n- M: libstdc++-v3/include/bits/unordered_map.h\n- M: libstdc++-v3/include/bits/unordered_set.h\n- M: libstdc++-v3/testsuite/23_containers/unordered_map/96088.cc\n- M: libstdc++-v3/testsuite/23_containers/unordered_map/modifiers/merge.cc\n- M: libstdc++-v3/testsuite/23_containers/unordered_multimap/modifiers/merge.cc\n- M: libstdc++-v3/testsuite/23_containers/unordered_multiset/allocator/move_assign.cc\n- M: libstdc++-v3/testsuite/23_containers/unordered_multiset/modifiers/merge.cc\n- M: libstdc++-v3/testsuite/23_containers/unordered_set/96088.cc\n- M: libstdc++-v3/testsuite/23_containers/unordered_set/allocator/move_assign.cc\n- M: libstdc++-v3/testsuite/23_containers/unordered_set/modifiers/merge.cc\n\n\nJonathan Wakely (12):\n libstdc++: Refactor\n _Hashtable::operator=(initializer_list<value_type>)\n libstdc++: Allow unordered_set assignment to assign to existing nodes\n libstdc++: Refactor Hashtable insertion [PR115285]\n libstdc++: Refactor Hashtable erasure\n libstdc++: Add _Hashtable::_M_assign for the common case\n libstdc++: Replace _Hashtable::__fwd_value_for with cast\n libstdc++: Use RAII in _Hashtable\n libstdc++: Remove _Insert base class from _Hashtable\n libstdc++: Remove _Equality base class from _Hashtable\n libstdc++: Remove _Hashtable_base::_S_equals\n libstdc++: Simplify _Hashtable merge functions\n libstdc++: Add _Hashtable::_M_locate(const key_type&)\n\n libstdc++-v3/include/bits/hashtable.h | 1107 ++++++++++-------\n libstdc++-v3/include/bits/hashtable_policy.h | 504 +-------\n libstdc++-v3/include/bits/unordered_map.h | 19 +-\n libstdc++-v3/include/bits/unordered_set.h | 19 +-\n .../23_containers/unordered_map/96088.cc | 21 +-\n .../unordered_map/modifiers/merge.cc | 130 ++\n .../unordered_multimap/modifiers/merge.cc | 119 ++\n .../allocator/move_assign.cc | 5 +-\n .../unordered_multiset/modifiers/merge.cc | 121 ++\n .../23_containers/unordered_set/96088.cc | 14 +-\n .../unordered_set/allocator/move_assign.cc | 10 +-\n .../unordered_set/modifiers/merge.cc | 128 ++\n 12 files changed, 1244 insertions(+), 953 deletions(-)" }