Cats.Helpers.EthiopianDate.FixedToGregorian C# (CSharp) Method

        private static void FixedToGregorian(int fixedDate, ref int year, ref int month, ref int day)
        {
            GregorianCalendar gregorianCalendar = new GregorianCalendar();
            year = GregorianYearFromFixed(fixedDate);
            int num2 = fixedDate - GregorianToFixed(year, 1, 1);
            int num = (fixedDate < GregorianToFixed(year, 3, 1)) ? 0 : (gregorianCalendar.IsLeapYear(year) ? 1 : 2);
            month = (int)Math.Floor((double)(((double)((12 * (num2 + num)) + 0x175)) / 367.0));
            day = (fixedDate - GregorianToFixed(year, month, 1)) + 1;
        }