https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81234
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Martin Sebor from comment #3) > In C, mode GCC accepts the test case from comment #0 but with -Wpedantic > issues a warning: > > t.c:8:14: warning: invalid use of structure with flexible array member > [-Wpedantic] Ah, I missed that when checking with the C front end, thanks.