@SwayamInSync Does the version of C++ we use already have float16 support / what does numpy use so that I could also add casting support for float16?

Here's where it happens in the stringdtype prototype:

You need to link against libnpymath to get the necessary C API:

https://numpy.org/doc/stable/reference/c-api/coremath.html#half-precision-functions

Here's where I handled that in the meson config:

The other problem, and probably why ubyte wasn't added earlier, is that ubyte and bool alias but need different code paths. Not sure how to fix that ...

@SwayamInSync@ngoldbaum I think everything should work now, what do you think?

Thanks for doing this@juntyr!

BTW if needed then in thisSwayamInSync#13 I wrote the workaround to get an "Non-Implemented" error instead of segfault crash.

Ah, I missed that - can you send it in as a followup PR?