// Ex3_10.cpp
// Using an infinite for loop to compute an average
#include <iostream>

using std::cin;
using std::cout;
using std::endl;

int main()
{
   double value(0.0);               // Value entered stored here
   double sum(0.0);                 // Total of values accumulated here
   int i(0);                        // Count of number of values
   char indicator('n');             // Continue or not?

   for(;;)                          // Infinite loop
   {
      cout << endl
           << "Enter a value: ";
      cin >> value;                 // Read a value
      ++i;                          // Increment count
      sum += value;                 // Add current input to total

      cout << endl
           << "Do you want to enter another value (enter n to end)? ";
      cin >> indicator;             // Read indicator
      if (('n' == indicator) || ('N' == indicator))
         break;                     // Exit from loop
   }

   cout << endl
        << "The average of the " << i
        << " values you entered is " << sum/i << "."
        << endl;
   return 0;
}