/////////////////////////////////////////////
// MT3Q5 - for_each with lambda

#include <algorithm>
#include <list>
#include <iostream>

template <typename Cont>
void Display(Cont& cont)
{
  std::cout << "\n  Container contents: ";
  for (auto item : cont)
    std::cout << item << " ";
  std::cout << "\n";
}
int main()
{
  std::cout << "\n  MT3Q5 - computing average with for_each and lambda";
  std::cout << "\n ====================================================\n";

  std::list<double> ld{ 0.0, 0.5, 1.0, 1.5, 2.0, 2.5 };
  double sum = 0;
  for_each(begin(ld), end(ld), 
    [&sum](double t) {
      sum += t;
    }
  );
  sum /= ld.size();
  Display(ld);
  std::cout << "\n  average = " << sum << "\n\n";
}