* A single character may contain more than one collation element.
* @param elems The UCollationElements containing the text.
* @param status A pointer to a UErrorCode to receive any errors.
- * @return The next collation elements ordering, otherwise returns NULLORDER
+ * @return The next collation elements ordering, otherwise returns UCOL_NULLORDER
* if an error has occured or if the end of string has been reached
* @stable ICU 2.0
*/
* a U_BUFFER_OVERFLOW_ERROR is returned if the internal stack
* buffer has been exhausted.
* @return The previous collation elements ordering, otherwise returns
- * NULLORDER if an error has occured or if the start of string has
+ * UCOL_NULLORDER if an error has occured or if the start of string has
* been reached.
* @stable ICU 2.0
*/