http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57588
--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Daniel Krügler from comment #4) > I don't think that this correct here (In C++11 the rules became relaxed). It was post-C++11, but as a DR we should implement it, and I see you're right, the initialization of int_ uses the lvalue-to-rvalue conversion immediately so it isn't odr-used. I've created PR 57594 and PR 57595 for the missing diagnostics.
