[xslt] How to handle errors using libxslt?

    // parse XSL
    cur = xsltParseStylesheetFile((const xmlChar *)xslFile_name);

    // parse XML
    doc = xmlParseFile(xmlFile_name);

    // apply XSL
    res = xsltApplyStylesheet(cur, doc, params);

    // display in stdout
    //xsltSaveResultToFile(stdout, res, cur);

    // saves formatted file to disk
    xmlSaveFile(formattedFile_name, res);

    // deallocate
    xsltFreeStylesheet(cur);
    xmlFreeDoc(res);
    xmlFreeDoc(doc);
        xsltCleanupGlobals();
        xmlCleanupParser();

esther
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