http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56158
--- Comment #4 from Paolo Carlini <paolo.carlini at oracle dot com> 2013-02-06 15:29:38 UTC --- I'm wondering: before doing anything in v3, is this a C++11 issue? Because in 17.5.2.1.3 I see a fixed underlying type but otherwise I see exactly ~static_cast<int_type>(X) like in v3?!?
