AK.F1.Timing.Model.Driver.LapHistoryEntry.CheckLapNumbersAreEqual C# (CSharp) Method

        private void CheckLapNumbersAreEqual(PostedTime s1, PostedTime s2, PostedTime s3, PostedTime lap)
        {
            int lapNumber = (s1 ?? s2 ?? s3 ?? lap).LapNumber;

            CheckLapNumber(s1, lapNumber, "s1");
            CheckLapNumber(s2, lapNumber, "s2");
            CheckLapNumber(s3, lapNumber, "s3");
            CheckLapNumber(lap, lapNumber, "lap");
        }