Function scale_vector 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn scale_vector(
    vec_ptr: *mut Vector3<f64>,
    factor: f64,
)

Scales an existing vector stored at the address of a pointer (vec_ptr) by a float factor

Safety

When finished with the underlying vector, the caller must remember to free the vector memory using the free_vector_memory FFI function