System.Text.Utf8.Utf8EncodedCodePoint.Utf8EncodedCodePoint C# (CSharp) Method

        public Utf8EncodedCodePoint(char character) : this()
        {
            if (char.IsSurrogate(character))
            {
                throw new ArgumentOutOfRangeException("character", "Surrogate characters are not allowed");
            }

            UnicodeCodePoint codePoint = (UnicodeCodePoint)(uint)character;

            unsafe
            {
                fixed (byte* encodedData = &_byte0)
                {
                    var buffer = new Span<byte>(encodedData, 4);
                    if (!Utf8Encoder.TryEncodeCodePoint(codePoint, buffer, out _length))
                    {
                        // TODO: Change exception type
                        throw new Exception("Internal error: this should never happen as codePoint is within acceptable range and is not surrogate");
                    }
                }
            }
        }