std::chrono::time_point<Clock,Duration>::min
From cppreference.com
< cpp | chrono | time point
static constexpr time_point min(); |
(until C++20) | |
static constexpr time_point min() noexcept; |
(since C++20) | |
Returns a time_point
with the smallest possible duration, i.e. time_point(std::chrono::duration::min()).
Parameters
(none)
Return value
the smallest possible time_point
Example
Run this code
#include <iostream> #include <ratio> #include <chrono> constexpr auto steady_min = std::chrono::steady_clock::time_point::min(); int main() { auto last_frame = steady_min; std::chrono::duration<float, std::milli> game_time {0.0F}; for (std::size_t count = 0; count < 5; ++count) { auto current_frame = std::chrono::steady_clock::now(); // initialize timer if first frame ever: if (last_frame == steady_min) last_frame = current_frame; game_time += current_frame - last_frame; std::cout << "Drawing frame at " << game_time.count() << " ms\n"; // animate frame at time offset game_time ... } }
Possible output:
Drawing frame at 0 ms Drawing frame at 0.17551 ms Drawing frame at 0.358325 ms Drawing frame at 0.545384 ms Drawing frame at 0.736717 ms