https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76262
--- Comment #3 from TC <rs2740 at gmail dot com> --- (In reply to Jonathan Wakely from comment #2) > In which case both EDG and Clang get this wrong, as they print "12" I know that Clang 3.7+ implemented DR1467 without 2137 (in which case "12" would be the right output) - that led to https://llvm.org/bugs/show_bug.cgi?id=23812. I'm not familiar with EDG.