http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56071
--- Comment #3 from Stephen <steveire at gmail dot com> 2013-01-22 08:41:02 UTC --- clang has other issues relating to this. Something to maybe add unit tests for if they don't exist already: http://thread.gmane.org/gmane.comp.compilers.clang.devel/27226