Yes. But we can do it in the last step, right? #[no_mangle] pub extern "C" fn process( in_ptr: *mut f32, out_ptr: *mut f32, siz

Yes. But we can do it in the last step, right? #[no_mangle] pub extern "C" fn process( in_ptr: *mut f32, out_ptr: *mut f32, size: usize, result_ptr: \*mut u8 ) { let _in_buf: &mut [f32] = unsafe { std::slice::from_raw_parts_mut(in_ptr, size) }; }