Hi Thomas,
By default TTree::Branch uses the split mode.
With your class you are hitting one of the current limitations
of the split mode that we hope to remove in a near future.
For the time being, replace the line
TBranch *B = tree->Branch("data", "A", &test);
by
TBranch *B = tree->Branch("data", "A", &test,32000,0);
Rene Brun
On Wed, 18 Oct 2000, Thomas Bretz wrote:
> Hello,
>
> let's assume I have a simple class which contains a TArray-Object like
> class A : public TObject
> {
> private:
> Int_t n;
> TArrayC arr;
> [...]
> }
>
> Now I tried to write it to a RootFile. It is no problem to write the
> Object and retriev it, but it seems, that only the Int_t is written to
> the file.
>
> I do something like:
> ----
> TFile file("test.root", "RECREATE", "test");
> TTree *tree = new TTree("T", "title");
> A *test = new A;
> TBranch *B = tree->Branch("data", "A", &test);
> for (int i=0; i<11; i++)
> {
> [Here I fill some data in the TArray]
> tree->Fill();
> }
> file.Write();
> file.Close();
> ----
>
> What's going wrong? What am I doing wrong?
>
> Regards,
> Thomas.
>
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