[Bug c++/57388] [C++11] ICE when function types with ref-qualifiers meet other function types

[daniel.kruegler at googlemail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57388

--- Comment #2 from Daniel Krügler <daniel.kruegler at googlemail dot com> ---
(In reply to Daniel Krügler from comment #0)
> While attempting to upgrade std::function for functions with ref-qualifiers 
> [..]

Oops, I meant std::is_function of-course.