https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86647
Martin Sebor <msebor at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2018-08-25 CC| |msebor at gcc dot gnu.org Ever confirmed|0 |1 Known to fail| |4.4.7, 4.8.3, 4.9.4, 5.4.0, | |6.3.0, 7.3.0, 8.2.0, 9.0 --- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> --- Confirmed. The warning is only issued by the C front end, not by C++.