{"id":2228983,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2228983/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/patch/20260427154535.1238354-1-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":"<20260427154535.1238354-1-jwakely@redhat.com>","date":"2026-04-27T15:44:29","name":"[committed] Note that modules are not part of C++20 stability","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"0e2c20c96ed34e069feb7c2f3fbeb1d5f8124e1c","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/20260427154535.1238354-1-jwakely@redhat.com/mbox/","series":[{"id":501680,"url":"http://patchwork.ozlabs.org/api/1.1/series/501680/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/list/?series=501680","date":"2026-04-27T15:44:29","name":"[committed] Note that modules are not part of C++20 stability","version":1,"mbox":"http://patchwork.ozlabs.org/series/501680/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2228983/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2228983/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=amJS+ae4;\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=1777304749;\n h=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n to:to:cc:cc:mime-version:mime-version:content-type:content-type:\n content-transfer-encoding:content-transfer-encoding:\n in-reply-to:in-reply-to:references:references;\n bh=b3CN5k76IlLJHlE7tmBd9T63pa8g+xm5WYQLBENkWko=;\n b=amJS+ae4XWxnNSBoGKbQjeq1hnwa1jJniB06IRsXA+7lJZ3AXJHeYnGUEE9YgJXvS1Phm2\n Cn0dfqr+JKC+PWwaoiEDIOKUaDF2Jq1ZlDPMlkSv/08GiVUC70+VfP/xukgoyNNZh5LEVu\n 2LK64mHdv2QlyE9iKhCNpTnPPYMR58U=","X-MC-Unique":"Tot0qmkVNDKpYLVcNFaxbA-1","X-Mimecast-MFC-AGG-ID":"Tot0qmkVNDKpYLVcNFaxbA_1777304744","From":"Jonathan Wakely ","To":"gcc-patches@gcc.gnu.org","Cc":"Jakub Jelinek , Jason Merrill ,\n libstdc++@gcc.gnu.org","Subject":"[committed] Note that modules are not part of C++20 stability","Date":"Mon, 27 Apr 2026 16:44:29 +0100","Message-ID":"<20260427154535.1238354-1-jwakely@redhat.com>","In-Reply-To":"<20260417211713.450546-1-jwakely@redhat.com>","References":"<20260417211713.450546-1-jwakely@redhat.com>","MIME-Version":"1.0","X-Scanned-By":"MIMEDefang 3.4.1 on 10.30.177.4","X-Mimecast-Spam-Score":"0","X-Mimecast-MFC-PROC-ID":"Rpnxd6b_D6eqoT1O0q_lJ1QXBOuMwJZRlsJ3dKfEBDw_1777304744","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":"Jakub suggested adding something about modules not being part of the\n\"C++20 is stable in GCC 16\" item.\n\nPushed to wwwdocs.\n\n---\n htdocs/gcc-16/changes.html | 2 ++\n 1 file changed, 2 insertions(+)","diff":"diff --git a/htdocs/gcc-16/changes.html b/htdocs/gcc-16/changes.html\nindex eec3f4e8..c56f3b8b 100644\n--- a/htdocs/gcc-16/changes.html\n+++ b/htdocs/gcc-16/changes.html\n@@ -211,6 +211,8 @@ for general information.

\n either add\n -std=\n to your build flags, or port your code; see the porting notes.\n+ N.B. C++20 modules support is still experimental and must be enabled by\n+ -fmodules.\n \n
  • Several C++26 features have been implemented:\n
      \n","prefixes":["committed"]}