 */
void
xmlXPathFloorFunction(xmlXPathParserContextPtr ctxt, int nargs) {
    CHECK_ARITY(1);
    CAST_TO_NUMBER;
    CHECK_TYPE(XPATH_NUMBER);

 */
void
xmlXPathFloorFunction(xmlXPathParserContextPtr ctxt, int nargs) {
    CHECK_ARITY(1);
    CAST_TO_NUMBER;
    CHECK_TYPE(XPATH_NUMBER);
