Currently, it is impossible at compile time to get the size of sized bstr/tstr objects. Their sizes are encoded in the validation code generated, but nowhere else.

For the fixed-sized arrays of objects, we can use the standard C preprocessor tricks to get the number of elements, but anything field that gets handled as a zcbor_string would need to be encoded separately.

It seems like it could be relatively simple to emil #defines for every validated size. Or even every validated limit, regardless.