Timer.h

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#pragma once
 
#include <chrono>
 
namespace ttk {
 
  class Timer {
    using ClockType = std::chrono::steady_clock;
    using TimeType = std::chrono::time_point<ClockType>;
    using DiffType = std::chrono::duration<double>;
 
  public:
    Timer() = default;
 
    inline double getElapsedTime() {
      const auto end = this->getTimeStamp();
      const DiffType diff = end - start_;
      return diff.count();
    }
    inline double getElapsedTime() {…}
 
    inline void reStart() {
      start_ = this->getTimeStamp();
    }
    inline void reStart() {…}
 
  protected:
    inline TimeType getTimeStamp() {
      return ClockType::now();
    }
    inline TimeType getTimeStamp() {…}
 
    TimeType start_{this->getTimeStamp()};
  };
  class Timer {…};
 
} // namespace ttk