Assuming I want to create Clock
with direct QueryPerformanceCounter
Windows API result. QueryPerformanceCounter
Windows API returns some counter that should be divided by QueryPerformanceFrequency
result, thus producing time in seconds.
Usually Clock
based on QueryPerformanceCounter
would immediately convert result to some units by multiplying by some period and dividing by QueryPerformanceFrequency
. This is how steady_clock
could be implemented on Windows.
But suppose that for performance reasons I want to avoid division until really needed. So time_point
is direct QueryPerformanceCounter
value, and duration
is the difference of such. And I can perform arithmetic and comparison on those values most of the time, converting to some normal duration
or time_point
only the final result.
I'm sure it is possible. My question is: will such Clock
be fully compatible with standard Clock
.
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