Function printSet

Examples/NoModules/Chapter 20/Ex20_03/Ex20_03.cpp:30–36

}

void printSet(const std::set<int>& my_set)
{
  std::cout << "There are " << my_set.size() << " elements in my_set: ";
  for (int element : my_set)       // A set, like all containers, is a range
    std::cout << element << ' ';
  std::cout << std::endl;
}