{"id":2226652,"url":"http://patchwork.ozlabs.org/api/covers/2226652/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/cover/bmm.hhuns4iz5m.gcc.gcc-TEST.redi.38.1.0@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":"2026-04-22T18:00:20","name":"[v1,0/1] libstdc++: Simplify __memcpyable_iterators concept","submitter":{"id":93210,"url":"http://patchwork.ozlabs.org/api/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.hhuns4iz5m.gcc.gcc-TEST.redi.38.1.0@forge-stage.sourceware.org/mbox/","series":[{"id":501059,"url":"http://patchwork.ozlabs.org/api/series/501059/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/list/?series=501059","date":"2026-04-22T18:00:20","name":"libstdc++: Simplify __memcpyable_iterators concept","version":1,"mbox":"http://patchwork.ozlabs.org/series/501059/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/covers/2226652/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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Wed, 22 Apr 2026 18:01:40 +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 E924342C12\n for ; Wed, 22 Apr 2026 18:01:39 +0000 (UTC)"],"DKIM-Filter":["OpenDKIM Filter v2.11.0 sourceware.org B05DA4BBC0B4","OpenDKIM Filter v2.11.0 sourceware.org 205C14B92092"],"DMARC-Filter":"OpenDMARC Filter v1.4.2 sourceware.org 205C14B92092","ARC-Filter":"OpenARC Filter v1.0.0 sourceware.org 205C14B92092","ARC-Seal":"i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1776880900; cv=none;\n b=MXjQvoXk3L8NGAGQdHDehiH6fC7w/xqnEVjVAYzIiAAlc7y8KPn3H80wQYkdRwQ2htORuDSRrwucgNRPoy3EJpuXgVnP6UFbTxgkw3//fcXHbIpSLvYGg5Vu7lt3iklmoB+KZawnceIjMzaX7anPwPHS11BHfOmqMIhu8TamodY=","ARC-Message-Signature":"i=1; a=rsa-sha256; d=sourceware.org; s=key;\n t=1776880900; c=relaxed/simple;\n bh=EmviE2Yq04ocp43VW1WT1ZE6NqlXI9vulond/cyj+iY=;\n h=From:Date:Subject:To:Message-ID;\n b=ohRH+2ascfcDdXU3vQe6E4cbsmsrIAl/AugDv57S4devv/f51Xz/NL9ki49rf1KflY7Pb80GMdNzApY46wnYHehwoLLdrP+hvSmwiAOpzQzBRBMhTyM0cyARkHvAN2n8t6bKaphp+iqLpLDJ2QA8OOqXHYnOrt4+DD9FmSTsniA=","ARC-Authentication-Results":"i=1; server2.sourceware.org","From":"Jonathan Wakely via Sourceware Forge\n ","Date":"Wed, 22 Apr 2026 18:00:20 +0000","Subject":"[PATCH v1 0/1] libstdc++: Simplify __memcpyable_iterators concept","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/38","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: 2025-03-06 20:18:08+00:00\nLatest update: 2025-08-13 03:38:33+00:00\nChanges: 4 changed files, 276 additions, 25 deletions\nHead revision: redi/gcc ref lower-contiguous-iterators commit d8b1644caadc53641de5c970761be157c8a9ab8f\nBase revision: gcc/gcc-TEST ref trunk commit 9f40ec15a30a248d72c496614d7bcbaa9be8ca49 r15-7885-g9f40ec15a30a24\nMerge base: 9f40ec15a30a248d72c496614d7bcbaa9be8ca49\nFull diff url: https://forge.sourceware.org/gcc/gcc-TEST/pulls/38.diff\nDiscussion: https://forge.sourceware.org/gcc/gcc-TEST/pulls/38\nRequested Reviewers:\n\nMy [P3349R1](https://wg21.link/P3349R1) paper clarifies that we should be able to lower contiguous\niterators to pointers, without worrying about side effects of individual\nincrement or dereference operations.\n\n```\nlibstdc++-v3/ChangeLog:\n\n\t* include/bits/stl_algobase.h (__nothrow_contiguous_iterator):\n\tRemove.\n\t(__memcpyable_iterators): Simplify.\n```\n\n\nChanged files:\n- A: libstdc++-v3/testsuite/25_algorithms/copy/contiguous.cc\n- A: libstdc++-v3/testsuite/25_algorithms/copy_backward/contiguous.cc\n- A: libstdc++-v3/testsuite/25_algorithms/copy_n/contiguous.cc\n- M: libstdc++-v3/include/bits/stl_algobase.h\n\n\nJonathan Wakely (1):\n libstdc++: Simplify __memcpyable_iterators concept\n\n libstdc++-v3/include/bits/stl_algobase.h | 39 +++-----\n .../25_algorithms/copy/contiguous.cc | 87 ++++++++++++++++++\n .../25_algorithms/copy_backward/contiguous.cc | 88 +++++++++++++++++++\n .../25_algorithms/copy_n/contiguous.cc | 87 ++++++++++++++++++\n 4 files changed, 276 insertions(+), 25 deletions(-)\n create mode 100644 libstdc++-v3/testsuite/25_algorithms/copy/contiguous.cc\n create mode 100644 libstdc++-v3/testsuite/25_algorithms/copy_backward/contiguous.cc\n create mode 100644 libstdc++-v3/testsuite/25_algorithms/copy_n/contiguous.cc"}