[Bug preprocessor/120778] [C++26] P2843R3 - Preprocessing is never undefined

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120778

--- Comment #7 from GCC 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:102179f11d35705f384817d7edec32bbda22b2b7

commit r16-2758-g102179f11d35705f384817d7edec32bbda22b2b7
Author: Jakub Jelinek <ja...@redhat.com>
Date:   Mon Aug 4 15:28:29 2025 +0200

    c++: Add #line testcase for CWG2580 [PR120778]

    Contrary to what the paper says, I think for #line directives we diagnose
    everything we should (sure, some diagnostics are pedwarns).

    2025-08-04  Jakub Jelinek  <ja...@redhat.com>

            PR preprocessor/120778
            * g++.dg/DRs/dr2580.C: New test.