r::lowest_layer
          (1 of 2 overloads)</a>
</h5></div></div></div>
<p>
            Get a reference to the lowest layer.
          </p>
<pre class="programlisting">lowest_layer_type &amp; lowest_layer();
</pre>
<p>
            This function returns a reference to the lowest layer in a stack of layers.
            Since a descriptor cannot contain any further layers, it simply returns
            a reference to itself.
          </p>
<h6>
<a name="boost_asio.reference.posix__descriptor.lowest_layer.over