System.__DTString.GetChar C# (CSharp) Method

        internal char GetChar() {
            BCLDebug.Assert(Index >= 0 && Index < len, "Index >= 0 && Index < len");
            return (Value[Index]);
        }

		private static bool ParseISO8601(ref DateTimeRawInfo raw, ref __DTString str, DateTimeStyles styles, ref DateTimeResult result)
		{
			if (raw.year >= 0 && raw.GetNumber(0) >= 0)
			{
				raw.GetNumber(1);
			}
			str.Index--;
			int second = 0;
			double num = 0.0;
			str.SkipWhiteSpaces();
			int hour;
			if (!DateTimeParse.ParseDigits(ref str, 2, out hour))
			{
				result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
				return false;
			}
			str.SkipWhiteSpaces();
			if (!str.Match(':'))
			{
				result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
				return false;
			}
			str.SkipWhiteSpaces();
			int minute;
			if (!DateTimeParse.ParseDigits(ref str, 2, out minute))
			{
				result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
				return false;
			}
			str.SkipWhiteSpaces();
			if (str.Match(':'))
			{
				str.SkipWhiteSpaces();
				if (!DateTimeParse.ParseDigits(ref str, 2, out second))
				{
					result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
					return false;
				}
				if (str.Match('.'))
				{
					if (!DateTimeParse.ParseFraction(ref str, out num))
					{
						result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
						return false;
					}
					str.Index--;
				}
				str.SkipWhiteSpaces();
			}
			if (str.GetNext())
			{
				char @char = str.GetChar();
				if (@char == '+' || @char == '-')
				{
					result.flags |= ParseFlags.TimeZoneUsed;
					if (!DateTimeParse.ParseTimeZone(ref str, ref result.timeZoneOffset))
					{
						result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
						return false;
					}
				}
				else
				{
					if (@char == 'Z' || @char == 'z')
					{
						result.flags |= ParseFlags.TimeZoneUsed;
						result.timeZoneOffset = TimeSpan.Zero;
						result.flags |= ParseFlags.TimeZoneUtc;
					}
					else
					{
						str.Index--;
					}
				}
				str.SkipWhiteSpaces();
				if (str.Match('#'))
				{
					if (!DateTimeParse.VerifyValidPunctuation(ref str))
					{
						result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
						return false;
					}
					str.SkipWhiteSpaces();
				}
				if (str.Match('\0') && !DateTimeParse.VerifyValidPunctuation(ref str))
				{
					result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
					return false;
				}
				if (str.GetNext())
				{
					result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
					return false;
				}
			}
			Calendar defaultInstance = GregorianCalendar.GetDefaultInstance();
			DateTime parsedDate;
			if (!defaultInstance.TryToDateTime(raw.year, raw.GetNumber(0), raw.GetNumber(1), hour, minute, second, 0, result.era, out parsedDate))
			{
				result.SetFailure(ParseFailureKind.FormatBadDateTimeCalendar, "Format_BadDateTimeCalendar", null);
				return false;
			}
			parsedDate = parsedDate.AddTicks((long)Math.Round(num * 10000000.0));
			result.parsedDate = parsedDate;
			return DateTimeParse.DetermineTimeZoneAdjustments(ref result, styles, false);
		}