Method ScopedTimer

source/util/timer.h:251–255

class ScopedTimer {
 public:
  ScopedTimer(std::ostream* out, const char* tag,
              bool measure_mem_usage = false)
      : timer(new TimerType(out, measure_mem_usage)), tag_(tag) {
    timer->Start();
  }

  // At the end of the scope surrounding the instance of this class, this
  // destructor saves the last status of resource usage and reports it.