[Bug c++/60852] [4.8/4.9/4.10 Regression] boost::has_complement of enum class does not compile

[trippels at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60852

--- Comment #12 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
The guys on stackoverflow think it's invalid:
http://stackoverflow.com/questions/23108590/is-this-valid-c11