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  27 <a name="boost_asio.reference.basic_stream_socket.at_mark.overload2"></a><a class="link" href="overload2.html" title="basic_stream_socket::at_mark (2 of 2 overloads)">basic_stream_socket::at_mark
  28           (2 of 2 overloads)</a>
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  30 <p>
  31             <span class="emphasis"><em>Inherited from basic_socket.</em></span>
  32           </p>
  33 <p>
  34             Determine whether the socket is at the out-of-band data mark.
  35           </p>
  36 <pre class="programlisting"><span class="keyword">bool</span> <span class="identifier">at_mark</span><span class="special">(</span>
  37     <span class="identifier">boost</span><span class="special">::</span><span class="identifier">system</span><span class="special">::</span><span class="identifier">error_code</span> <span class="special">&amp;</span> <span class="identifier">ec</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  38 </pre>
  39 <p>
  40             This function is used to check whether the socket input is currently
  41             positioned at the out-of-band data mark.
  42           </p>
  43 <h6>
  44 <a name="boost_asio.reference.basic_stream_socket.at_mark.overload2.h0"></a>
  45             <span class="phrase"><a name="boost_asio.reference.basic_stream_socket.at_mark.overload2.parameters"></a></span><a class="link" href="overload2.html#boost_asio.reference.basic_stream_socket.at_mark.overload2.parameters">Parameters</a>
  46           </h6>
  47 <div class="variablelist">
  48 <p class="title"><b></b></p>
  49 <dl class="variablelist">
  50 <dt><span class="term">ec</span></dt>
  51 <dd><p>
  52                   Set to indicate what error occurred, if any.
  53                 </p></dd>
  54 </dl>
  55 </div>
  56 <h6>
  57 <a name="boost_asio.reference.basic_stream_socket.at_mark.overload2.h1"></a>
  58             <span class="phrase"><a name="boost_asio.reference.basic_stream_socket.at_mark.overload2.return_value"></a></span><a class="link" href="overload2.html#boost_asio.reference.basic_stream_socket.at_mark.overload2.return_value">Return
  59             Value</a>
  60           </h6>
  61 <p>
  62             A bool indicating whether the socket is at the out-of-band data mark.
  63           </p>
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  67 <td align="right"><div class="copyright-footer">Copyright &#169; 2003-2014 Christopher M. Kohlhoff<p>
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  69         file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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