http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58038
Matthew Lai <m at matthewlai dot ca> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |m at matthewlai dot ca --- Comment #7 from Matthew Lai <m at matthewlai dot ca> --- I also encountered this bug trying to use std::this_thread::sleep_until() for video frame spacing (so the sleeps are very short, and sometimes become negative). Without this fix there is no way to safely use std::this_thread::sleep_until(), because even if the caller checks for negative sleep durations, there is always the chance that the thread gets preempted after entering the function, and before it checks the current time. Theoretically speaking any amount of time can elapse between those 2 points.