EricWF added a comment. I'm not sure `CLOCK_UPTIME_RAW` meets the requirements of `steady_clock`. The manpage for `clock_gettime` on OS X specifies `CLOCK_UPTIME_RAW` as:
> CLOCK_UPTIME_RAW clock that increments monotonically, in the same manner as > CLOCK_MONOTONIC_RAW, but that does not increment while the system is asleep. And C++17 [time.clock.steady]p1 says: > Objects of class steady_clock represent clocks for which values of time_point > never decrease as physical time advances and for which values of time_point > advance at a steady rate relative to real time. That is, the clock may not be > adjusted. So if `CLOCK_UPTIME_RAW` doesn't update while the system is asleep does it advance at a steady rate relative to real time? I'm not convinced it does. @mclow.lists Do you agree with this interpretation? https://reviews.llvm.org/D27429 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
