ame="id1"></a>
<pre class="pretop">
  &gt; (interval-end '(1 2))
  2
  &gt; (interval-end '(1 . 2))
  2
  &gt; (interval-end #(1  2))
  2
  &gt; (defparameter *x* (<a href="ref-make-interval.html">make-interval</a> 1 2))
  *x*
  &gt; *x*
  (1 . 2)
  &gt; (setf (interval-end *x*) 4)
  4
  &gt; *x*
  (1 . 4)
  &gt;
</pre>
</p>
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