https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120778
--- Comment #10 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:43472f2cc0ef6c702c649947d379f334a4262596 commit r16-3030-g43472f2cc0ef6c702c649947d379f334a4262596 Author: Jakub Jelinek <ja...@redhat.com> Date: Wed Aug 6 10:44:09 2025 +0200 c++: Add test for vt/ff in line comments P2843R3 dropped the "If there is a form-feed or a vertical-tab character in such a comment, only whitespace characters shall appear between it and the new-line that terminates the comment; no diagnostic is required." sentence from [lex.comment]. AFAIK we've never diagnosed nor checked for that and C23 doesn't have anything like that, so the following testcase merely tests that we don't diagnose anything on it. 2025-08-06 Jakub Jelinek <ja...@redhat.com> PR preprocessor/120778 * c-c++-common/cpp/comment-ff-1.c: New test. * c-c++-common/cpp/comment-vtab-1.c: New test.
