[Bug c++/55842] C++11 ICE with boost multi-precision and boost variant

[glisse at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55842

--- Comment #3 from Marc Glisse <glisse at gcc dot gnu.org> 2013-01-01 18:30:52 UTC ---
template <class=void> struct number {
  number() noexcept(noexcept(0)) { }
};
const int z=__has_nothrow_constructor(number<>);