Add support for Float and Fixed overflow when last data is NullData

[Hinogary]

No description provided.

[Krolken]

Nice. Open an issue about this and explain a bit more what you are trying to solve. I'm not sure this is how I would like the solution to be.

Good catch with the pointer.

[Hinogary]

I’m trying to read new data types like Float or BitString. I’m not sure if this description belongs in a separate issue. Let’s rather discuss it directly over the code.

I think you have issue with VARIABLE_LENGTH_BITS? I dont know how to do it differently. it is not VARIABLE_LENGTH, because length is in bits not bytes, also can't be 0 or any specific number, because it is variable. Or you have issue with some other code? Feel free to comment specific line of code.

[Krolken]

I was under the impression that BITSTRING length was still in octets.
A length byte for how many octets, then a byte representing unused bits in the last octet and then the octets.

What object are you trying to model?

[Hinogary]

I come to conclussion that i dont need bitstring. I tried to read status of Image transfer, but meter i am using have segmented display, so this will not be used anyway. https://www.gurux.fi/Gurux.DLMS.Objects.GXDLMSImageTransfer
I will remove changes with it once i got home.

[Hinogary]

You are probably right, that BitString is still in Octets, my bad.

I removed it, is it now ok?