                  <p>Returns the number of bytes which were written</p>

                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:FC10PerfectLib4File5writeFzT5bytesGSaVs5UInt8_12dataPositionSi6lengthSi_Si"></a>
                    <a name="//apple_ref/swift/Method/write(bytes:dataPosition:length:)" class="dashAnchor"></a>
                    <