timer.h

#ifndef TIMER_H_
#define TIMER_H_
 
#include <chrono>
#include <iostream>
 
/**
 * Elapsed time measurement
 */
class Timer {
 public:
  Timer();
  Timer(const Timer&) = delete;
  Timer& operator=(const Timer&) = delete;
  bool RunningMoreThan(double seconds) const;
  friend std::ostream& operator<<(std::ostream& os, const Timer& /*timer*/);
 
 private:
  using Clock = std::chrono::steady_clock;
 
  Clock::time_point start_;
};
 
#endif  // TIMER_H_