https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106646
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:365202625d2f2d6694dba889ca67498fefb59c68 commit r13-2167-g365202625d2f2d6694dba889ca67498fefb59c68 Author: Jakub Jelinek <ja...@redhat.com> Date: Wed Aug 24 09:55:57 2022 +0200 preprocessor: Implement C++23 P2437R1 - Support for #warning [PR106646] On Thu, Aug 18, 2022 at 11:02:44PM +0000, Joseph Myers wrote: > ISO C2x standardizes the existing #warning extension. Arrange > accordingly for it not to be diagnosed with -std=c2x -pedantic, but to > be diagnosed with -Wc11-c2x-compat. And here is the corresponding C++ version. Don't pedwarn about this for C++23/GNU++23 and tweak the diagnostics for C++ otherwise, + testsuite coverage. The diagnostic wording is similar e.g. to the #elifdef diagnostics. 2022-08-24 Jakub Jelinek <ja...@redhat.com> PR c++/106646 * init.cc: Implement C++23 P2437R1 - Support for #warning. (lang_defaults): Set warning_directive for GNUCXX23 and CXX23. * directives.cc (directive_diagnostics): Use different wording of #warning pedwarn for C++. * g++.dg/cpp/warning-1.C: New test. * g++.dg/cpp/warning-2.C: New test. * g++.dg/cpp/warning-3.C: New test.