{"id":2230455,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2230455/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/patch/20260429182502.814099-1-ppalka@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":"<20260429182502.814099-1-ppalka@redhat.com>","date":"2026-04-29T18:25:02","name":"[gcc-wwwdocs] gcc-16: document some notable C++ changes","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"6ed4652200c88d12d532e3281daa68d7ed59b0be","submitter":{"id":78319,"url":"http://patchwork.ozlabs.org/api/1.1/people/78319/?format=json","name":"Patrick Palka","email":"ppalka@redhat.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/gcc/patch/20260429182502.814099-1-ppalka@redhat.com/mbox/","series":[{"id":502129,"url":"http://patchwork.ozlabs.org/api/1.1/series/502129/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/list/?series=502129","date":"2026-04-29T18:25:02","name":"[gcc-wwwdocs] gcc-16: document some notable C++ changes","version":1,"mbox":"http://patchwork.ozlabs.org/series/502129/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2230455/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2230455/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=E2h6ftia;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org\n (client-ip=38.145.34.32; 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charset=\"US-ASCII\"; x-default=true","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":"OK to push?\n\n-- >8 --\n---\n htdocs/gcc-16/changes.html | 28 ++++++++++++++++++++++++++++\n 1 file changed, 28 insertions(+)","diff":"diff --git a/htdocs/gcc-16/changes.html b/htdocs/gcc-16/changes.html\nindex cab3bca4..fc100056 100644\n--- a/htdocs/gcc-16/changes.html\n+++ b/htdocs/gcc-16/changes.html\n@@ -286,6 +286,34 @@ for general information.

\n \n \n+
  • Experimental C++20 modules support\n+
      \n+
    • \n+ New command line option --compile-std-module that\n+ conveniently builds the <bits/stdc++.h> header unit\n+ and the std and std.compat modules before\n+ compiling any source files explicitly specified on the command line.\n+
      • \n+
    • \n+ Whenever the <bits/stdc++.h> header unit has been\n+ built, GCC now transparently translates an #include of\n+ any importable standard library header into an import of\n+ <bits/stdc++.h>.\n+
      • \n+
    • \n+
      • \n+
    • \n+ Many reported bugs have been fixed, thanks to Nathaniel Shead.\n+
      • \n+
    \n+
    • \n+
  • \n+ Constraint failure diagnostics for standard library type traits\n+ such as is_constructible_v and is_invocable_v\n+ are improved to further elaborate why the trait is false\n+ instead of just reporting expression is_foo_v<...> evaluates to\n+ false, thanks to Nathaniel Shead.\n+
    • \n \n \n

    Runtime Library (libstdc++)

    \n","prefixes":["gcc-wwwdocs"]}