public CalendarDays minus(CalendarDays other) {

        return CalendarDays.of(Math.subtractExact(this.days, other.days));

    }
public CalendarDays minus ( CalendarDays other ) { return CalendarDays . of ( Math . subtractExact ( this . days , other . days ) ) ; }
/*[deutsch]
<p>Liefert die Differenz der Kalendertage dieser Instanz und des angegebenen Arguments. </p>

@param   other   calendar days to be subtracted
@return  delta of calendar days
@since   3.4/4.3