[Bug c++/65942] [5/6 Regression] [C++14] cannot use std::function as comparator in algorithms

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65942

--- Comment #6 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
(In reply to Avi Kivity from comment #5)
> That's clang + libstdc++-5.1, so if the problem is in libstdc++, it's the
> same bug.

Yes. clang++ -stdlib=libc++ -std=gnu++14 original_testcase.cpp 
is also fine.