ection"><a href="base_from_member.html#base_from_member.usage">Usage</a></span></dt>
<dt><span class="section"><a href="base_from_member.html#base_from_member.example">Example</a></span></dt>
<dt><span class="section"><a href="base_from_member.html#base_from_member.acknowledgments">Acknowledgments</a></span></dt>
</dl>
</div>
<div class="section">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="base_from_member.rationale"></a><a class="link" href="base_from_member.html#base_