DecodeLastFromUtf16()

static OperationStatus System.Text.Rune.DecodeLastFromUtf16 ( ReadOnlySpan< char > source, out Rune result, out int charsConsumed )

inlinestatic

Definition at line 288 of file Rune.cs.

    {
        int num = source.Length - 1;
        if ((uint)num < (uint)source.Length)
        {
            char c = source[num];
            if (TryCreate(c, out result))
            {
                charsConsumed = 1;
                return OperationStatus.Done;
            }
            if (char.IsLowSurrogate(c))
            {
                num--;
                if ((uint)num < (uint)source.Length)
                {
                    char highSurrogate = source[num];
                    if (TryCreate(highSurrogate, c, out result))
                    {
                        charsConsumed = 2;
                        return OperationStatus.Done;
                    }
                }
                charsConsumed = 1;
                result = ReplacementChar;
                return OperationStatus.InvalidData;
            }
        }
        charsConsumed = -source.Length >>> 31;
        result = ReplacementChar;
        return OperationStatus.NeedMoreData;
    }

References System.Text.Rune.ReplacementChar, System.source, and System.Text.Rune.TryCreate().