#pragma once

#include <chrono>
#include <ostream>

class Timer {
private:
  std::chrono::time_point<std::chrono::high_resolution_clock> start_;
  std::chrono::time_point<std::chrono::high_resolution_clock> end_;

public:
  Timer();

  void start();
  void stop();

  long us() const;
};

std::ostream &operator<<(std::ostream &os, const Timer &timer);