25 lines
649 B
C++
25 lines
649 B
C++
#pragma once
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#include <chrono>
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#include <ratio>
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#include <utility>
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#define time_now() std::chrono::high_resolution_clock::now()
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using ns = std::chrono::nanoseconds;
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using ms = std::chrono::milliseconds;
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template <typename DurationUnit = std::chrono::nanoseconds>
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auto to_duration(const std::chrono::duration<long, std::nano> &delta)
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{
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return std::chrono::duration_cast<DurationUnit>(delta).count();
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}
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template <typename DurationUnit, typename F, typename... Args>
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auto timer(F func, Args &&... args)
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{
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auto start_time = time_now();
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func(std::forward<Args>(args)...);
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return to_duration<DurationUnit>(time_now() - start_time);
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}
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