Ryan Joseph <generic...@gmail.com> schrieb am So., 13. Okt. 2019, 16:22:
> > > > On Oct 13, 2019, at 5:58 AM, Sven Barth via fpc-pascal < > fpc-pascal@lists.freepascal.org> wrote: > > > >> Delphi does not allow it: > >> > >> [dcc32 Error] Project1.dpr(18): E1019 For loop control variable must be > simple local variable > >> > >> I don't think this should be allowed, either. > > > > Same. > > Why not? > > I just had this problem on 9/26, search for “for-in loop cast”. What if I > have a list of TObjects I want to iterate? I know TMyClass is safe to use > but the compiler complains so I override it with a typecast. If you take > that away I’ll have to do tons of casting outside of the loop. > > var > arr: specialize TFPGObjectList<TObject>; > obj: TMyClass; > begin > arr := specialize TFPGObjectList<TObject>.Create; > arr.Add(TObject.Create); > // Incompatible types: got "TObject" expected "TMyClass" > for obj in arr do > begin > end; > Then specialize the list with the correct type. This issue *will* be fixed and is not up to discussion. Regards, Sven >
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