 without blocking.
        </p>
<pre class="programlisting"><span class="keyword">typedef</span> <span class="identifier">implementation_defined</span> <span class="identifier">bytes_readable</span><span class="special">;</span>
</pre>
<p>
          Implements the FIONREAD IO control command.
        </p>
<h6>
<a name="boost_asio.reference.socket_base.bytes_readable.h0"></a>
          <span><a name="boost_asio.reference.socket_base.bytes_readable.example"></a></span><a class="link" href="bytes_readable.html