#include <string>
#include <sys/times.h>
#include <iostream>
//use when to compile on outdated slc
#include <unistd.h>
#include <stdint.h>
#include <stdio.h>

using namespace std;

class Stopwatch {

 public:

  Stopwatch();
  ~Stopwatch();

  void start();
  void stop();
  double getRealTime();
  double getSysTime();
  string formatRealTime();
  string formatSysTime();

 private:

  struct tms ftmsStart, ftmsEnd;
  clock_t fstart,fend;
  uint32_t fclockTicks;

};