On 02/12/2014 16:34, Виталий Кирсанов wrote: > Hm, indeed. The following piece of code works fine: > > int main(string[] argv) > { > List<string> list = new List<string>(); > assert( list == null ); > return 0; > } > > > So this seems to be the answer to my question. But still there are two > weird things in my opinion: > > - Why I need to call operator new if the result value is still null? > Can't I simply declare a reference List<string> list; and then call e.g. > append()? Yes, you can. "new List()" is just "null". > - I thought that only references appended with question mark sign (e.g. > List<string>?) can be null, cant' they? There are several exceptions due to historical reasons. Null is quite weak in Vala by default in several places. There's an experimental non-null flag for valac, but that's not much worked on.
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