A couple of years back, I wrote an implementation of a list in C that provided a List_ForEach(list, callback, context) function, because I really liked that idiom in Ruby. 2 years down the track, I almost never use that function, preferring to simply do this:

  for (pItem = List_First(pList); pItem; pItem = List_Next(pList))
  {
        //do stuff to pItem
  }

It really isn't that much wordier than the ruby (or lisp, or python etc, they all have similar styles for this):

  list.each do |item|
    #do stuff to item
  end

and as you do it all of the time, you don't even have a high cognitive load, your fingers can pretty much type it without having to engage the brain.

OK, so it's implemented using control structures rather than closures. Is that really such a terrible thing? Am I missing some big advantage here?