https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72768
--- Comment #8 from lh_mouse <lh_mouse at 126 dot com> --- (In reply to Jonathan Wakely from comment #7) > It *could* check, but that doesn't mean it should. I was merely stating that the twice-destruction problem wasn't unresolvable. The topic about the C++ standard starts here: https://groups.google.com/a/isocpp.org/forum/#!topic/std-discussion/VipjQOBUg6M