cxx-benchmarks/measure_time.h

#pragma once

#include <chrono>
#include <iostream>

template<typename Callable>
void measure_time(Callable&& callable) {
	using namespace std::chrono;
	steady_clock::time_point t_start = steady_clock::now();
	callable();
	duration<double> time_span = duration_cast<duration<double>>(steady_clock::now() - t_start);

	std::cout << "took " << time_span.count() << " seconds\n";
}

template<typename Callable>
void measure_time_with_dry_run(Callable&& callable) {
	callable();
	measure_time(std::forward<Callable>(callable));
}