[Port KF5] Why we get so many segfault...

[Aditya Sharma]

> Hello,
>
> Sorry for not being able to get back to you on IRC. I have been busy with
> another project of mine at my university for quite some time now.
>
> If a method was virtual before and is pure virtual now then one can't call
> that function as the method is of an abstract class now in Qt5 (and hence
> can't be instantiated). Just removing these function calls won't help
> either as the classes that derive from these will also remain an abstract
> class until these pure virtual functions are reimplemented in the derived
> classes.
>
> So the calls to these specific functions will automatically turn up as
> errors during the compilation process (thus automatically highlighting the
> need to take care of the now pure virtual function). Can you please explain
> why then is it needed to use pragma in these cases?
>
> Regards,
> Aroonav.
>
>
Apart from what Aroonav said, I'd like to add that if there were these
errors, then they would have appeared at compilation time only. Since each
derived class *needs* to define the function that it's deriving from the
abstract base class.

Regards
Aditya
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