https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57443
--- Comment #3 from Ville Voutilainen <ville.voutilainen at gmail dot com> --- The resolution of Core Issue 2211 makes such code ill-formed.
ville.voutilainen at gmail dot com Sat, 18 Mar 2017 08:02:45 -0700
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57443
--- Comment #3 from Ville Voutilainen <ville.voutilainen at gmail dot com> --- The resolution of Core Issue 2211 makes such code ill-formed.