Thread: Timing a for loop

Code:

 am trying to time a for loop for different values but I can't get my for loop to stop and with the timing function I am using is it measuring in milliseconds or something else?
#include< iostream >
#include< iomanip >
#include< cstdlib >
#include< ctime >
#include< cstdio >
#include< fstream >

const int vSize = 1;
using namespace std;



int main()
{
   
    
     
   
    
     //Random numbers to be sorted
    int vec[vSize]={50};//,50000//,100000,200000,400000};

    //Declare the clock variables
    clock_t start,finish;
    clock_t startAll;



    
     //Declare and initialize all the variables
   double duration;
    
    //Declare the streams and the input and output files
    ifstream inFile;
   ofstream outFile;

    inFile.open("input1.txt");
   outFile.open("output1.txt");

int Sum=0;
    //Test the algorithms
    start=clock();
    outFile<<"Numbers to be sorted"<< endl;
         for(int i =0; i < vec[vSize]; i++)
         {
              Sum++;
              cout<< Sum;
         }

         





    



          
          
          
          //Switch statement to start the different sort algorithms
         

         finish=clock();
         duration=(double)(finish-start)/CLOCKS_PER_SEC;
         cout<<"          "<< setw(4)<< duration;
         
    
          finish=clock();
         duration=(double)(finish-start)/CLOCKS_PER_SEC;
         cout<<"Total Duration"<< duration<< endl;
    return 0;
}//end of main