
<a name="boost_asio.reference.basic_datagram_socket.available.overload2.h1"></a>
            <span><a name="boost_asio.reference.basic_datagram_socket.available.overload2.return_value"></a></span><a class="link" href="overload2.html#boost_asio.reference.basic_datagram_socket.available.overload2.return_value">Return
            Value</a>
          </h6>
<p>
            The number of bytes that may be read without blocking, or 0 if an error
            occurs.
          </p>
</div>
<table xmlns:rev="http://w