High Speed Timer

[smi256]

As I’m sure most of you have already gotten the e-mail.

#include <stdio.h>
#include <windows.h>

main ()
{ 
/************   Your Variables   *************/
   char meh;
/*******************************************/


/*******************************************/
/*****   Variables needed to use Timer   *****/
/*******************************************/
/**/   double  elapsedTimeSec = 0;
/**/   LARGE_INTEGER liStart, liFinish;
/**/   LARGE_INTEGER liFreq;
/**/   QueryPerformanceFrequency(&liFreq);
/*******************************************/

   
//////////////////////////////////////////
   QueryPerformanceCounter(&liStart);    //Start Timer
//////////////////////////////////////////


/*~~~~~~!!!   Your Code Here   !!!~~~~~~~~~*/
   

/////////////////////////////////////////
   QueryPerformanceCounter(&liFinish);   //Stop Timer
/////////////////////////////////////////
           
   elapsedTimeSec = (double)(liFinish.LowPart - liStart.LowPart)/(double)liFreq.LowPart;
   printf("n%0.6f secondsn",elapsedTimeSec);   //Store and Prints the time
   
   
   meh=getch();
}

[smi256]

Here's how you use it... <_<
I think it'd be nice if people posted more though... cuz... I have no idea what people are thinking
/me needs to work on his physic powers :sheep:

/*******************************************
 * Name:              I almost post it, probably doesn't even matter any more
 * Course:            CIS 40
 * Assingment:        Pseudo Random # Gen
 * Compiler:          Div-C++
*******************************************/

#include <stdio.h>
#include <windows.h>
#define MINRAND 1
#define MAXRAND 1000

int random(int min, int max);
main()
{ /*********************************************/
   /******   Variables needed to use Timer   ******/
   /*********************************************/
   /**/   double  elapsedTimeSec = 0;           /**/
   /**/   LARGE_INTEGER liStart, liFinish;      /**/
   /**/   LARGE_INTEGER liFreq;                 /**/
   /**/   QueryPerformanceFrequency(&liFreq);  /**/
   /*********************************************/
   char meh;
   int i,j,k;
   FILE *f;
   f=fopen("rand.txt","w");
   printf("How many random numbers? ");
   scanf("%d",&j);
   fprintf(f,"a[%d]={",j);
//////////////////////////////////////////
   QueryPerformanceCounter(&liStart);     //Start Timer
//////////////////////////////////////////
   for(i=0;i<j;i++)
   {  k=random(MINRAND,MAXRAND);
      fprintf(f,"%d",k);
      if((i+1)<j)
         fprintf(f,",",k);
      printf("%5d\t",k);
      if((i+1)%100==0)
         printf("\nProgress: %d random numbers generated so far.\n\n",(i+1));
   }
///////////////////////////////////////////
   QueryPerformanceCounter(&liFinish);     //Stop Timer
///////////////////////////////////////////
   fprintf(f,"};");
   fclose(f);
   putch(7);
   elapsedTimeSec=(double)(liFinish.LowPart - liStart.LowPart)/(double)liFreq.LowPart;  //Save the time
   printf("\n\nIt took %0.6f seconds to generate %d random numbers\n",elapsedTimeSec,i);//Print the time
   printf("The numbers were stored in 'rand.txt'\nPress a key to close this window.");
   meh=getch();
}

int random(int min, int max)
{  static int seed;
   seed==0 ? srand(seed=time(NULL)): seed;
   return rand()%(max+1-min)+min;
}