an class="keyword">bool</span> <span class="identifier">is_set</span> <span class="special">=</span> <span class="identifier">option</span><span class="special">.</span><span class="identifier">value</span><span class="special">();</span>
</pre>
<h6>
<a name="boost_asio.reference.basic_socket_streambuf.do_not_route.h1"></a>
          <span><a name="boost_asio.reference.basic_socket_streambuf.do_not_route.requirements"></a></span><a class="link" href="do_not_route.html#boost_asio.reference.basic_socket_strea