[Bug c++/106646] [C++23] P2437R1 - Support for #warning
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106646 Jakub Jelinek changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|--- |FIXED --- Comment #5 from Jakub Jelinek --- Implemented for GCC 13.
[Bug c++/106646] [C++23] P2437R1 - Support for #warning
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106646 --- Comment #4 from CVS Commits --- The master branch has been updated by Jakub Jelinek : https://gcc.gnu.org/g:365202625d2f2d6694dba889ca67498fefb59c68 commit r13-2167-g365202625d2f2d6694dba889ca67498fefb59c68 Author: Jakub Jelinek 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 +, 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 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.
[Bug c++/106646] [C++23] P2437R1 - Support for #warning
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106646 Jakub Jelinek changed: What|Removed |Added Last reconfirmed||2022-08-22 Ever confirmed|0 |1 Status|UNCONFIRMED |ASSIGNED Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org --- Comment #3 from Jakub Jelinek --- Created attachment 53488 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53488=edit gcc13-pr106646.patch Untested implementation.
[Bug c++/106646] [C++23] P2437R1 - Support for #warning
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106646 --- Comment #2 from Marek Polacek --- Thanks, I can look into that for C++. I notice that with your patch we say "#warning before C2X is a GCC extension" even when compiling with cc1plus; I suppose the C2X message should be guarded by CPP_OPTION (pfile, cplusplus).
[Bug c++/106646] [C++23] P2437R1 - Support for #warning
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106646 --- Comment #1 from Joseph S. Myers --- Enabled for C2x (i.e. stopped -pedantic diagnosing it) with commit d7c3000147c1d8090f66a2baf4623d2c0dfe8eb6 - C++ will presumably want to adjust the diagnostics as well as enabling for relevant C++ versions and adding associated tests.
