timing.hpp

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/*
 * timing.hpp
 *
 * Some utility functions for timing.
 
 *  Created on: 16 Oct 2022
 *   Author(s): Jorn Reniers, Volkan Kumtepeli
 */
 
 
#pragma once
 
#include <ctime>
#include <iostream>
#include <cmath>
#include <chrono>
 
 
namespace slide {
struct Clock
{
  std::chrono::time_point<std::chrono::steady_clock> tstart{ std::chrono::steady_clock::now() };
  Clock() = default;
  auto now() const { return std::chrono::steady_clock::now(); }
  auto start() const { return tstart; }
  double duration() const
  {
    std::chrono::duration<double> elapsed_seconds = now() - start();
    return elapsed_seconds.count();
  }
};
 
inline std::ostream &operator<<(std::ostream &ofs, const Clock &clk)
{
  const auto duration = clk.duration();
  ofs << std::floor(duration / 60) << ":"
      << duration - std::floor(duration / 60) * 60
      << " min:sec";
 
  return ofs;
}
} // namespace slide