Conversion of C++ code from Linux to Windows

Question

I am new to C++ , I have a program in C++ written for Linux. I\'m trying to convert it to Windows. The code I have is:

struct Timer 
{  
    struct tms t[2];
            


        

Answer 1

Here's a class I wrote that I always use

#ifndef HIGHPERFTIMER_H
#define HIGHPERFTIMER_H

#include 
#include 

class StopWatch
{
  LARGE_INTEGER freq, startTime, endTime, thisTime, lastTime ;
  double fFreq ;

public:
  double total_time ; 

  StopWatch()
  {
    QueryPerformanceFrequency( &freq ) ;
    fFreq = (double)freq.QuadPart ;
    total_time = 0 ;

    printf( "     --- The ffreq is %lf\n", fFreq ) ;
  }

  void start()
  {
    QueryPerformanceCounter( &startTime ) ;
    thisTime = lastTime = startTime ;
    total_time = 0.0 ;  // start counter at 0 seconds
  }

  double stop()
  {
    QueryPerformanceCounter( &endTime ) ;
    total_time = ( endTime.QuadPart - startTime.QuadPart ) / fFreq ;
    return total_time ;
  }

  void update()
  {
    lastTime = thisTime ;
    QueryPerformanceCounter( &thisTime ) ;
    total_time += ( thisTime.QuadPart - lastTime.QuadPart ) / fFreq ;
  }
} ;

#endif //HIGHPERFTIMER_H

Example usage:

int main()
{
    StopWatch stopWatch ;
    stopWatch.start() ;
    ///.. code..
    stopWatch.stop() ;
    printf( "Time elapsed: %f sec", stopWatch.total_time ) ;
}