 &gt;0 - compression level</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of bytes written success or a negative value on fail</td></tr></tbody></table></div><h3><a name="xmlC14NDocSaveTo" id="xmlC14NDocSaveTo"></a>Function: xmlC14NDocSaveTo</h3><pre class="programlisting">int	xmlC14NDocSaveTo		(<a href="libxml-tree.html#xmlDocPtr">xmlDocPtr</a> doc, <br />					 <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes, <br />					 int mode, <br />					 <a hre