Re: [PATCH v4 0/1] MR7806: winewayland: Implement relative motion accumulator

[Alexandros Frantzis (＠afrantzis)]

Alexandros Frantzis (@afrantzis) commented about dlls/winewayland.drv/wayland_pointer.c:
>              process_wayland.zwp_relative_pointer_manager_v1,
>              pointer->wl_pointer);
>      zwp_relative_pointer_v1_add_listener(pointer->zwp_relative_pointer_v1,
> -
>                                         &relative_pointer_v1_listener, NULL);
> -
>                                         &relative_pointer_v1_listener, &accum);
>    TRACE("Enabling relative motion\n");
> }
>    else if (!needs_relative && pointer->zwp_relative_pointer_v1)
>    {
> -
>    memset(&accum, 0, sizeof(accum));

I would recommend setting the doubles explicitly with `= 0.0`, as memset(0) of double variables is undefined behavior (from a C standard perspective, although you'd be hard-pressed to find a system where this causes a problem).