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{ "id": 2226145, "url": "http://patchwork.ozlabs.org/api/covers/2226145/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/cover/bmm.hhuawf4oe6.gcc.gcc-TEST.ppalka.8.1.0@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.hhuawf4oe6.gcc.gcc-TEST.ppalka.8.1.0@forge-stage.sourceware.org>", "list_archive_url": null, "date": "2026-04-22T10:13:02", "name": "[v1,0/1] libstdc++: Fix complexity of drop_view::begin const [PR112641]", "submitter": { "id": 93215, "url": "http://patchwork.ozlabs.org/api/people/93215/?format=api", "name": "ppalka via Sourceware Forge", "email": "forge-bot+ppalka@forge-stage.sourceware.org" }, "mbox": "http://patchwork.ozlabs.org/project/gcc/cover/bmm.hhuawf4oe6.gcc.gcc-TEST.ppalka.8.1.0@forge-stage.sourceware.org/mbox/", "series": [ { "id": 500958, "url": "http://patchwork.ozlabs.org/api/series/500958/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/list/?series=500958", "date": "2026-04-22T10:13:03", "name": "[v1,1/1] libstdc++: Fix complexity of drop_view::begin const [PR112641]", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/500958/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2226145/comments/", "headers": { "Return-Path": "<gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org>", "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 10:13:28 +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 A477F40545\n for <gcc-patches@gcc.gnu.org>; Wed, 22 Apr 2026 10:13:28 +0000 (UTC)" ], "DKIM-Filter": [ "OpenDKIM Filter v2.11.0 sourceware.org 6FB5A4B9DB74", "OpenDKIM Filter v2.11.0 sourceware.org D212F4BA23F3" ], "DMARC-Filter": "OpenDMARC Filter v1.4.2 sourceware.org D212F4BA23F3", "ARC-Filter": "OpenARC Filter v1.0.0 sourceware.org D212F4BA23F3", "ARC-Seal": "i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1776852808; cv=none;\n b=U+QDaancDIXw564MTdp4AoDFv3wTMfm51m+4FtglDsZND4aPmMAFQDs772eF3N7HuWnbyX3WU3GrQU2Vn+08BrQXvXA1DpDpz+dbFz4sdvXbjggIg2Mb7nyTVlmoVuflqyqhOXycbk9hHjJrzhbRAf6XvbI5z+TjF2bkAwnyA90=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=sourceware.org; s=key;\n t=1776852808; c=relaxed/simple;\n bh=tHqjsJp5rnVW7SicPiXhIZ77eciKBO2w425OQ6395as=;\n h=From:Date:Subject:To:Message-ID;\n b=Ge4qqs20K7Y0nldfwBFEU2BtNt08i9Kb5Z3TDf+/Vwe7Gn9DeIQsnE+DomAy/Z5tPbmFkmXuD379sG+ZLdm4FibFyKd71WBNUUWwO5VFxuFFMM0r1y3qMlgcvN9wFbXBizGSUXG4zsfg16cuZVTJUWRqau8Wc0zf7EcokUohtDs=", "ARC-Authentication-Results": "i=1; server2.sourceware.org", "From": "ppalka via Sourceware Forge\n <forge-bot+ppalka@forge-stage.sourceware.org>", "Date": "Wed, 22 Apr 2026 10:13:02 +0000", "Subject": "[PATCH v1 0/1] libstdc++: Fix complexity of drop_view::begin const\n [PR112641]", "To": "gcc-patches mailing list <gcc-patches@gcc.gnu.org>", "Message-ID": "\n <bmm.hhuawf4oe6.gcc.gcc-TEST.ppalka.8.1.0@forge-stage.sourceware.org>", "X-Mailer": "batrachomyomachia", "X-Requested-Reviewer": "redi", "X-Pull-Request-Organization": "gcc", "X-Pull-Request-Repository": "gcc-TEST", "X-Pull-Request": "https://forge.sourceware.org/gcc/gcc-TEST/pulls/8", "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>,\n ppalka@gcc.gnu.org", "Errors-To": "gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org" }, "content": "Hi gcc-patches mailing list,\nppalka via Sourceware Forge <forge-bot+ppalka@forge-stage.sourceware.org> has requested that the following forgejo pull request\nbe published on the mailing list.\n\nCreated on: 2024-10-25 15:16:48+00:00\nLatest update: 2026-04-22 09:33:52+00:00\nChanges: 0 changed files, 0 additions, 0 deletions\nHead revision: gcc/gcc-TEST ref refs/pull/8/head commit b184fad509fba4941ceb9ec61427a754e677850a\nBase revision: gcc/gcc-TEST ref trunk commit 0dbc588acaa27a3a56bc9173bd577e1293f10046 r15-4611-g0dbc588acaa27a\nMerge base: 0dbc588acaa27a3a56bc9173bd577e1293f10046\nFull diff url: https://forge.sourceware.org/gcc/gcc-TEST/pulls/8.diff\nDiscussion: https://forge.sourceware.org/gcc/gcc-TEST/pulls/8\nRequested Reviewers: redi\n\nViews are required to have a amortized O(1) begin(), but our drop_view's\nconst begin overload is O(n) for non-common ranges. This patch\nreimplements it so that it's O(1) even in that case. See also LWG 4009.\n\n\tPR libstdc++/112641\n\nlibstdc++-v3/ChangeLog:\n\n\t* include/std/ranges (drop_view::begin const): Reimplement\n\tso that it's O(1) instead of O(n) even in the non-common\n\trange case.\n\t* testsuite/std/ranges/adaptors/drop.cc (test10): New test.\n\nThanks for taking the time to contribute to GCC!\n\nPlease be advised that https://forge.sourceware.org/ is currently a trial\nthat is being used by the GCC community to experiment with a new workflow\nbased on pull requests.\n\nPull requests sent here may be forgotten or ignored. Patches that you want to\npropose for inclusion in GCC should use the existing email-based workflow,\nsee https://gcc.gnu.org/contribute.html\n\n\nChanged files:\n- M: libstdc++-v3/include/std/ranges\n- M: libstdc++-v3/testsuite/std/ranges/adaptors/drop.cc\n\n\nPatrick Palka (1):\n libstdc++: Fix complexity of drop_view::begin const [PR112641]\n\n libstdc++-v3/include/std/ranges | 4 ++--\n libstdc++-v3/testsuite/std/ranges/adaptors/drop.cc | 12 ++++++++++++\n 2 files changed, 14 insertions(+), 2 deletions(-)" }