r passing template</em> named <tt class="docutils literal">class_type</tt>.</p>
</div>
<div class="section" id="class-template-skeleton">
<h4>2.4.1.2&nbsp;&nbsp;&nbsp;Class Template Skeleton</h4>
<p>The next step is to define the skeleton of our class template,
which has three optional parameters.  Because the user may pass
arguments in any order, we don't know the actual identities of
these parameters, so it would be premature to use descriptive names
or write out the actual default values for any of them.