http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49107
--- Comment #17 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-06-05 07:16:43 UTC --- Well, auto_ptr is already deprecated in the FDIS. Personally, I would have no objections to breaking auto_ptr in c++0x mode if this is the only way to save the noexcept machinery. We really want it for performance reasons, otherwise when we start using move_if_noexcept in the containers (for correctness vs exceptions) the containers always fall back to copying instead of moving. Anyway, I understand now this is purely a Standard issue, there is nothing special to our implementation, I also saw Jason' message arriving on the reflector. There is hope. By the way, I would be still curious to see what an implementation using intrinsics does in such cases, probably an ICE?!?