RE: Minimal example of extending Guile with Rust?

[M]

> (similar to the

>native C arrays numpy exposes to C that allow getting the >speed of C).

 

For this in particular, there is pointer->bytevector, bytevector->pointer and bytevector-TYPE-ref, bytevector-TYPE-set! (it’s not limited to only bytes, also floats are available IIRC).

 

Don’t do bytevector->pointer + pointer->bytevector + … in long sequences though, or else this loop will use memory proportional to the length to this sequence. (This is intentionally undocumented (*).)

 

Best regards,

Maxime Devos

 

(*) For its application bytevector-slice, see https://lists.gnu.org/archive/html/guile-devel/2023-01/msg00042.html, which was ignored.