{"id":2226099,"url":"http://patchwork.ozlabs.org/api/1.2/covers/2226099/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/cover/bmm.hhu8qqul0c.gcc.gcc-TEST.redi.3.1.0@forge-stage.sourceware.org/","project":{"id":17,"url":"http://patchwork.ozlabs.org/api/1.2/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":"2026-04-22T08:54:46","name":"[v1,0/1] libstdc++: Simplify std::__throw_bad_variant_access","submitter":{"id":93210,"url":"http://patchwork.ozlabs.org/api/1.2/people/93210/?format=json","name":"Jonathan Wakely via Sourceware Forge","email":"forge-bot+redi@forge-stage.sourceware.org"},"mbox":"http://patchwork.ozlabs.org/project/gcc/cover/bmm.hhu8qqul0c.gcc.gcc-TEST.redi.3.1.0@forge-stage.sourceware.org/mbox/","series":[{"id":500949,"url":"http://patchwork.ozlabs.org/api/1.2/series/500949/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/list/?series=500949","date":"2026-04-22T08:54:46","name":"libstdc++: Simplify std::__throw_bad_variant_access","version":1,"mbox":"http://patchwork.ozlabs.org/series/500949/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/covers/2226099/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=2620:52:6:3111::32; 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server2.sourceware.org","From":"Jonathan Wakely via Sourceware Forge\n ","Date":"Wed, 22 Apr 2026 08:54:46 +0000","Subject":"[PATCH v1 0/1] libstdc++: Simplify std::__throw_bad_variant_access","To":"gcc-patches mailing list ","Message-ID":"\n ","X-Mailer":"batrachomyomachia","X-Requested-Reviewer":"ppalka","X-Pull-Request-Organization":"gcc","X-Pull-Request-Repository":"gcc-TEST","X-Pull-Request":"https://forge.sourceware.org/gcc/gcc-TEST/pulls/3","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 , 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 has requested that the following forgejo pull request\nbe published on the mailing list.\n\nCreated on: 2024-10-23 14:11:56+00:00\nLatest update: 2026-04-18 23:30:23+00:00\nChanges: 0 changed files, 0 additions, 0 deletions\nHead revision: redi/gcc ref refs/pull/3/head commit f9cdc7e69f3aa30fb19aec0ee30d31bb43601515\nBase revision: gcc/gcc-TEST ref trunk commit cc33531df065c20a52cb0c35637f096978128b46 r15-4608-gcc33531df065c2\nMerge base: cc33531df065c20a52cb0c35637f096978128b46\nFull diff url: https://forge.sourceware.org/gcc/gcc-TEST/pulls/3.diff\nDiscussion: https://forge.sourceware.org/gcc/gcc-TEST/pulls/3\nRequested Reviewers: ppalka\n\nThis removes the overload of `__throw_bad_variant_access` that must be\ncalled with a string literal. This avoids a potential source of\nundefined behaviour if that function got misused. The other overload\nthat takes a bool parameter can be adjusted to take an int describing\nwhich of the four possible string literals to use, and ensure that the\n`std::bad_variant_access` constructor is only called with those. Passing\nan int outside the range [0,3] is bogus, but will still select a valid\nstring literal and avoid undefined behaviour.\n\n```\nlibstdc++-v3/ChangeLog:\n\n\t* include/std/variant (bad_variant_access): Adjust friend\n\tdeclaration.\n\t(__throw_bad_variant_access(const char*)): Remove.\n\t(__throw_bad_variant_access(bool)): Change parameter to int.\n\t(visit, visit): Adjust calls to __throw_bad_variant_access.\n```\n\n\nChanged files:\n- M: libstdc++-v3/include/std/variant\n\n\nJonathan Wakely (1):\n libstdc++: Simplify std::__throw_bad_variant_access\n\n libstdc++-v3/include/std/variant | 32 +++++++++++++++-----------------\n 1 file changed, 15 insertions(+), 17 deletions(-)"}