[Bug libstdc++/63400] [C++11]precision of std::chrono::high_resolution_clock

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63400

--- Comment #14 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Thanks!

So does that mean mingw-w64 fixed the issue by improving the resolution of
CLOCK_REALTIME?
In that case, this bug could be closed WORKSFORME.

Or maybe the testcase makes invalid assumptions and isn't really measuring what
it thinks it's measuring?

In any case, we might want to keep it open to track the suggestion of using
GetSystemTimePreciseAsFileTime for utc_clock, as an enhancement.