Hi Thomas,
>From an intermediate mail, I see that:
- you are using 3.01/06 (not 3.02)
- your default constructors create objects
See me previous mail to Valery Fine this morning where I indicated the
recipee to follow in this case. In your case, declare;
TObjArray *fArray; //-> List of Lo/Hi gain Histograms
Rene Brun
Thomas Bretz wrote:
>
> Hi all,
>
> as a read your eMail I remember that I have also trouble with
> TObject::Clone().
>
> I have two classes:
> class A : public TObject { TObjArray *arr; ClassDef(A,1) } and
> class B : public TObject { TH1F *hist; }
>
> The TObjArray holds object of type B. In some cases I call A::Clone()
> this worked (I guess until 3.01) But now it doesn't work anymore, I get
> an empty TObjArray with 0 entries, so that I had to overwrite the Clone
> function.
>
> Maybe this helps,
> Thomas.
>
> > I am also experiencing problems with the I/O in version 3.02/06.
> > Somehow writing of instances of one of my private classes fails with
> > 3.02/06 using the new schema evolution, whereas with the old streamer
> > method (i.e. no "+" in the Linkdef.h) everything works correctly.
> > I get the impression that the problem(s) are related to TObject::Clone(),
> > which uses the I/O streamers as far as I understnad.
> > I am still investigating things, but I also think that it would be
> > better to wait a bit before making 3.02/06 the pro version.
This archive was generated by hypermail 2b29 : Tue Jan 01 2002 - 17:51:11 MET