http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57825
--- Comment #5 from Daniel Krügler <daniel.kruegler at googlemail dot com> --- (In reply to Paolo Carlini from comment #3) > Daniel, which library testcases did we commit?!? ;) Crazy. During an intermediate state we had bug 57388 which prevented for some time the proper specialization of std::is_function. The difference in the here discussed case is the specialization for pointer to members
