[Development] Undeprecating QString::null

[Konstantin Tokarev]

16.01.2018, 19:18, "Uwe Rathmann" <uwe.rathmann at tigertal.de>:
> On Tue, 16 Jan 2018 16:47:57 +0100, Olivier Goffart wrote:
>
>>  Just change your code to use "= QString()", no #ifdef necessary.
>
> The "just change" introduces a binary incompatibility - right ?
>
> Please be aware, that Qwt is part of almost any Linux distro - according
> to sourceforge it has more than 1000 additional downloads every week
> since many years.
>
> All distro maintainers would not only have to upgrade the Qwt packages,
> but also all packages depending on it - users would have to rebuild.

However, it seems like amount of reverse dependencies of Qwt is rather
moderate, e.g. in Ubuntu I see

  libqwt6:i386
  zygrib
  simon
  qsapecng
  qgis
  nlkt
  libqwt-dev
  libqgis-gui2.0.1


>
> Considering the strict compatibility rules you have for Qt you will
> understand, that this is nothing I would like to do easily.
>
> But could you please comment on why this change is an improvement -
> beyond getting rid of 3-4 lines in qstring.h ?

Because having redundancies in API is bad maybe?

>
> Thanks,
> Uwe
>
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-- 
Regards,
Konstantin