h2>
<p>BOOST_PROTO_BASIC_EXTENDS &#8212; For creating expression wrappers that add members to a Proto expression template, like
      <code class="computeroutput"><a class="link" href="boost/proto/extends.html" title="Struct template extends">proto::extends&lt;&gt;</a></code>,
      but while retaining POD-ness of the expression wrapper.</p>
</div>
<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
<div xmlns:rev="http://www.cs.rpi.edu/~gregod/b