gobject floating reference count

[Povietkin Konstantin <povetkin k gmail com>]

Hi, all! 

I have read documentation on GObject floating reference. I understand
why it`s needed and how it works. 

Can somebody explain me what shall I do if i want to get reference in
this situation:

void someFunc( GVariant * k )
{
	k = some_glib_method( );
}
....
GVariant * ref;
....

someFunc( ref );


ref is null after "someFunc" execution.


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