[PATCH 2/4] comctl32/listbox: Implement LBS_NODATA for multi-selection listboxes

[Gabriel Ivăncescu]

On 2/25/19 4:00 PM, Huw Davies wrote:
> On Mon, Feb 25, 2019 at 03:39:14PM +0200, Gabriel Ivăncescu wrote:
>> Ok, I have a question now: can I use a small helper that uses the cast
>> instead of a union? Something like:
>>
>> static inline BYTE *get_nodata_items(const LB_DESCR *descr)
>> {
>>      return (BYTE*)descr->items;
>> }
>>
>> And use it where needed? It would require less changes to the code and, IMO,
>> keep it cleaner (other than the one helper above). Such helpers are frequent
>> in other parts of the code (mostly dealing with COM stuff).
> 
> No.  That's just hiding the hack.  The issue is that regular storage
> and no date storage should have an equal footing.  With a union it's
> clear.  The only places you should need to change of the helpers and
> most of those don't do anything in the no data case, so it shouldn't
> be too bad.
> 

Yes I just find the "descr->u.items" slightly uglier and wanted to avoid 
it even if it's a simple no-op (the u. part) since we don't have anon 
unions, but okay I'll use an union then :-)