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UnicodeString & DateIntervalFormat::format ( const DateInterval dtInterval,
UnicodeString appendTo,
FieldPosition fieldPosition,
UErrorCode status 
) const

Format a DateInterval to produce a string.

dtInterval DateInterval to be formatted.
appendTo Output parameter to receive result. Result is appended to existing contents.
fieldPosition On input: an alignment field, if desired. On output: the offsets of the alignment field.
status Output param filled with success/failure status.
Reference to 'appendTo' parameter. ICU 4.0

Definition at line 254 of file dtitvfmt.cpp.

References fDateFormat, fFromCalendar, fInfo, format(), DateInterval::getFromDate(), DateInterval::getToDate(), NULL, Calendar::setTime(), U_FAILURE, and U_SUCCESS.

    if ( U_FAILURE(status) ) {
        return appendTo;

    if ( fFromCalendar != NULL && fToCalendar != NULL && 
         fDateFormat != NULL && fInfo != NULL ) {
        fFromCalendar->setTime(dtInterval->getFromDate(), status);
        fToCalendar->setTime(dtInterval->getToDate(), status);
        if ( U_SUCCESS(status) ) {
            return format(*fFromCalendar, *fToCalendar, appendTo,fieldPosition, status);
    return appendTo;

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