https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78269
--- Comment #9 from Thomas Preud'homme <thopre01 at gcc dot gnu.org> --- (In reply to Paolo Carlini from comment #8) > Confirmed that 7.1.0 is fine. It is indeed. As can be seen in my comment #4, this was fixed somewhere before 14th of November 2016, well before GCC 7 release. Best regards.