func (list *LinkedList) Sort(comparator Comparator) error {
	list.key.Lock()
	defer list.key.Unlock()
	var err error
	list.first, err = mergeSort(list.first, comparator)
	if err != nil {
		return err
	}
	list.last = findLast(list.first)
	return err
}
func (list *LinkedList) Sort(comparator Comparator) error {
	list.key.Lock()
	defer list.key.Unlock()
	var err error
	list.first, err = mergeSort(list.first, comparator)
	if err != nil {
		return err
	}
	list.last = findLast(list.first)
	return err
}
func ( list * LinkedList ) Sort ( comparator Comparator ) error { list . key . Lock ( ) defer list . key . Unlock ( ) var err error list . first , err = mergeSort ( list . first , comparator ) if err != nil { return err } list . last = findLast ( list . first ) return err }
// Sort rearranges the positions of the entries in this list so that they are
// ascending.
Sort rearranges the positions of the entries in this list so that they are ascending .