ence.read_at.overload7.return_value">Return Value</a>
        </h6>
<p>
          The number of bytes transferred.
        </p>
<h6>
<a name="boost_asio.reference.read_at.overload7.h2"></a>
          <span class="phrase"><a name="boost_asio.reference.read_at.overload7.exceptions"></a></span><a class="link" href="overload7.html#boost_asio.reference.read_at.overload7.exceptions">Exceptions</a>
        </h6>
<div class="variablelist">
<p class="title"><b></b></p>
<dl class="variablelist">
<dt><span class="term