{"id":2229744,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2229744/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/patch/20260428164708.1422958-1-jwakely@redhat.com/","project":{"id":17,"url":"http://patchwork.ozlabs.org/api/1.1/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},"msgid":"<20260428164708.1422958-1-jwakely@redhat.com>","date":"2026-04-28T16:46:31","name":"libstdc++: Update documentation about default -std option","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"ff86f57dd6317315a4d253a388ae3e700187bd97","submitter":{"id":48004,"url":"http://patchwork.ozlabs.org/api/1.1/people/48004/?format=json","name":"Jonathan Wakely","email":"jwakely@redhat.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/gcc/patch/20260428164708.1422958-1-jwakely@redhat.com/mbox/","series":[{"id":501903,"url":"http://patchwork.ozlabs.org/api/1.1/series/501903/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/list/?series=501903","date":"2026-04-28T16:46:31","name":"libstdc++: Update documentation about default -std option","version":1,"mbox":"http://patchwork.ozlabs.org/series/501903/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2229744/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2229744/checks/","tags":{},"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\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=CcdrvShJ;\n\tdkim-atps=neutral","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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a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;\n s=mimecast20190719; t=1777394833;\n h=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n to:to:cc:mime-version:mime-version:content-type:content-type:\n content-transfer-encoding:content-transfer-encoding;\n bh=GukNNL+dYK7MZEISNLqGPSTgVRocz5KoNKYxnOaugIQ=;\n b=CcdrvShJPcfPTEz3YxaCybRPRyVyZdcOTFtBKqwGq/Fp0Dtat0JTxXJx/MZf2GbBGaPUHv\n 7DIYtro0+fmkAtouZALHi2J/vk7QyN9Nq+RdyQxMMvTHA9CsRNGKviwVPK0GQaPaChefET\n SJUM66RhKH18KyBCIV6nu0427J2Mvgc=","X-MC-Unique":"Hb1PiP89Pf-QyJm4qH1Khg-1","X-Mimecast-MFC-AGG-ID":"Hb1PiP89Pf-QyJm4qH1Khg_1777394831","From":"Jonathan Wakely ","To":"gcc-patches@gcc.gnu.org,\n\tlibstdc++@gcc.gnu.org","Subject":"[PATCH] libstdc++: Update documentation about default -std option","Date":"Tue, 28 Apr 2026 17:46:31 +0100","Message-ID":"<20260428164708.1422958-1-jwakely@redhat.com>","MIME-Version":"1.0","X-Scanned-By":"MIMEDefang 3.0 on 10.30.177.12","X-Mimecast-Spam-Score":"0","X-Mimecast-MFC-PROC-ID":"aW7vsWH3k2O0_dpwri_ag-lm-FD98t6kpQVIUbBmBRY_1777394831","X-Mimecast-Originator":"redhat.com","Content-Type":"text/plain","Content-Transfer-Encoding":"8bit","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 ","Errors-To":"gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org"},"content":"libstdc++-v3/ChangeLog:\n\n\t* doc/xml/manual/using.xml (Flags): Update description of\n\tdefault value for -std option.\n\t* doc/html/manual/using.html: Regenerate.\n---\n\nI intend to push this to trunk.\n\nOK for the gcc-16 branch too?\n\n libstdc++-v3/doc/html/manual/using.html | 5 +++--\n libstdc++-v3/doc/xml/manual/using.xml | 5 +++--\n 2 files changed, 6 insertions(+), 4 deletions(-)","diff":"diff --git a/libstdc++-v3/doc/html/manual/using.html b/libstdc++-v3/doc/html/manual/using.html\nindex 27f503ecaccc..32a1c726cb1e 100644\n--- a/libstdc++-v3/doc/html/manual/using.html\n+++ b/libstdc++-v3/doc/html/manual/using.html\n@@ -11,8 +11,9 @@\n The standard library conforms to the dialect of C++ specified by the\n -std option passed to the compiler.\n By default, g++ is equivalent to\n- g++ -std=gnu++17 since GCC 11, and\n- g++ -std=gnu++14 in GCC 6, 7, 8, 9, and 10, and\n+ g++ -std=gnu++20 since GCC 16, and\n+ g++ -std=gnu++17 in GCC 11-15, and\n+ g++ -std=gnu++14 in GCC 6-10, and\n g++ -std=gnu++98 for older releases.\n

Table 3.1. C++ Command Options

Option FlagsDescription
-std\n \ndiff --git a/libstdc++-v3/doc/xml/manual/using.xml b/libstdc++-v3/doc/xml/manual/using.xml\nindex 682669d91d4b..e2e75e8fe28c 100644\n--- a/libstdc++-v3/doc/xml/manual/using.xml\n+++ b/libstdc++-v3/doc/xml/manual/using.xml\n@@ -16,8 +16,9 @@\n The standard library conforms to the dialect of C++ specified by the\n option passed to the compiler.\n By default, g++ is equivalent to\n- g++ -std=gnu++17 since GCC 11, and\n- g++ -std=gnu++14 in GCC 6, 7, 8, 9, and 10, and\n+ g++ -std=gnu++20 since GCC 16, and\n+ g++ -std=gnu++17 in GCC 11-15, and\n+ g++ -std=gnu++14 in GCC 6-10, and\n g++ -std=gnu++98 for older releases.\n \n \n","prefixes":[]}