> I used half-float in GPU programming and from my perspective it was
> just native. There are no half-float in C, right. But there are
> half-floats used in NVIDIA libraries for example and I like to think
> used format is native and platform-depended in general. Correct me if
> I'm mistaking.

By "native", the struct module means there is a corresponding C type and
therefore corresponding rules for size and alignment, as implemented by
the C compiler. GPU structure layout is another matter, as the C
compiler doesn't target that (not in a standard setup, anyway).

Apparently the patch takes the stance that the corresponding C type (for
size and alignment) is "short", which I guess is an acceptable
compromise, but still a bit weird.