in terms of zero or more calls to the device's
          read_some_at function.
        </p>
<h6>
<a name="boost_asio.reference.read_at.overload7.h0"></a>
          <span class="phrase"><a name="boost_asio.reference.read_at.overload7.parameters"></a></span><a class="link" href="overload7.html#boost_asio.reference.read_at.overload7.parameters">Parameters</a>
        </h6>
<div class="variablelist">
<p class="title"><b></b></p>
<dl class="variablelist">
<dt><span class="term">d</span></dt>
<dd><p>
           