How to have integer array as read only field from struct?

[tienviitta]

For example: How to have read only field crcReg from this struct Crc to the binding?:

typedef struct Crc {
  ...
  uint32_t crcReg[4];
  ...
} Crc;

I have tried .def_ro(...) but obviously it is not working. Should I make some kind of "getter" for this and have it as nb::ndarray<...>?

[wjakob]

Just like in pybind11, there isn't great support for this. You can use std::array instead (with some limitations due to the type caster) or expose the underlying storage through a property involving a type like nb::ndarray (which can be made to return a NumPy array view).

[tienviitta]

Thank you, this is some legacy code, so hard to get rid of but I'll take that nb::ndarray approach under work.