is deleted.</p>
 
  The first element of each iterator will be evaluated.</p>

<h3 class="function"><a name="umerge-3">umerge/3</a></h3>
<div class="spec">
<p><tt>umerge(Fun, Iterator1, Iterator2) -&gt; Iterator3</tt>
<ul class="definitions"><li><tt>Fun = <a href="#type-compare">compare</a>(A, B)</tt></li><li><tt>Iterator1 = <a href="#type-iterator">iterator</a>(A)</tt></li><li><tt>Iterator2 = <a href="#type-iterator">iterator</a>(B)</tt></li><li><tt>Iterator3 = <a href="#type-iterator">iterator</a>(A | B)<