public unsafe override int GetCharCount(byte* bytes, int count, DecoderNLS baseDecoder)
{
// Just assert, we're called internally so these should be safe, checked already
Debug.Assert(bytes != null, "[ISO2022Encoding.GetCharCount]bytes is null");
Debug.Assert(count >= 0, "[ISO2022Encoding.GetCharCount]byteCount is negative");
// Just call getChars with null char* to get count
return GetChars(bytes, count, null, 0, baseDecoder);
}