System.Text.SuperEncoding.GetBytes C# (CSharp) Метод

        public override int GetBytes(char[] chars, int charIndex, int charCount, byte[] bytes, int byteIndex)
        {
            int byteCount = 0;
            ushort u;
            char c;

            for (int i = 0; i < charCount; charIndex++, byteIndex++, byteCount++, i++)
            {
                c = chars[charIndex];
                u = _unicodeToDbcs[c];
                if (u == 0 && c != 0)
                {
                    bytes[byteIndex] = 0x3f;    // 0x3f == '?'
                }
                else if (u < 0x100)
                {
                    bytes[byteIndex] = (byte)u;
                }
                else
                {
                    bytes[byteIndex] = (byte)((u >> 8) & 0xff);
                    byteIndex++;
                    byteCount++;
                    bytes[byteIndex] = (byte)(u & 0xff);
                }
            }

            return byteCount;
        }