/* program to benchmark FP native code*/
 #include <stdio.h>
 #include <math.h>  
 #include <time.h>
 
  void main(void)
/* Note that defining i,j,m as local variables below decreases
 * execution speed from 30 sec to 18 sec */
{
    clock_t now ;
    double  i,j,k; 
    printf("starting C program ....\n");
    now = clock()/CLOCKS_PER_SEC ;
        for (i=1; i<=10000 ; i++)
            for (j=1; j<=10000 ; j++) 
               k=i*j;
   
    printf("Time for 1E8 double multiplies: %5d secs\n",clock()/CLOCKS_PER_SEC - now);
 }