Function average10

Examples/Modules/Chapter 08/Ex8_09B.cpp:15–21

Function to compute an average

// Function to compute an average
double average10(const double (&array)[10])
{
  double sum {};                       // Accumulate total in here
  for (double val : array)
    sum += val;                        // Sum array elements
  return sum / std::size(array);       // Return average
}