</span>BOOST_PROTO_EXTENDS_USING_ASSIGN(Derived)</pre></div>
<div class="refsect1">
-<a name="idp551335920"></a><h2>Description</h2>
+<a name="idp463668064"></a><h2>Description</h2>
<p>
The standard usage of
<code class="computeroutput"><a class="link" href="boost/proto/extends.html" title="Struct template extends">proto::extends<></a></code>