is it possible to add an element to a list and preserve the order
<p>I would like to add an element to a list that preserve the order of the list.</p>

<p>Let's assume the list of object is  <em>[a, b, c, d]</em> I have a function <em>cmp</em> that compares two elements of the list. if I add f object which is the bigger I would like it to be at the last position.</p>

<p>maybe it's better to sort the complete list...</p>
