func chan_to_tree(channel <-chan Item, filtered bool) (tree *llrb_tree.Tree) {
tree = llrb_tree.Make(filtered)
for item := range channel {
tree.Insert(item)
}
return
}
func slice_to_tree(slice []Item, filtered bool) (tree *llrb_tree.Tree) {
tree = llrb_tree.Make(filtered)
for _, item := range slice {
tree.Insert(item)
}
return
}