programlisting">template&lt;
    typename <a class="link" href="../SyncRandomAccessReadDevice.html" title="Buffer-oriented synchronous random-access read device requirements">SyncRandomAccessReadDevice</a>,
    typename Allocator,
    typename <a class="link" href="../CompletionCondition.html" title="Completion condition requirements">CompletionCondition</a>&gt;
std::size_t read_at(
    SyncRandomAccessReadDevice &amp; d,
    uint64_t offset,
    basic_streambuf&lt; Allocator &gt; &amp; b,
    CompletionCon