def for_each(container, function)
{
  var range = range(container);

  while (!range.empty())
  {
    function(range.front());
    range.pop_front();
  }
}

var vec = [1,2,3,4,5,6,7,8,9, "hi", 4.5]

for_each(vec, fun(x) { print(x); } );