           non-negative)
                    </p>
                    <p>
                      <code class="computeroutput"><span class="identifier">sign</span></code> is the
                      sign of the overall real number to convert.
                    </p>
                    <p>
                      <code class="computeroutput"><span class="identifier">force_sign</span></code>
                      is a flag indicating whether a sign has to be generated even
                      for non-negativ