paolo maestro wrote:
>
Hi Paolo,
There are no size limitations for matrices.
To give a diagnostic, we have to know more about your Event.h,.cxx,
possibly having your tree file.
Which version are you using:
see:http://root.cern.ch/root/roottalk/RoottalkRules.html
Rene Brun
see:> Hi rooters,
> I have a class Event containing a float Matrix[20][50];
> in the main program I fill a root tree h1 with an object Event* event.
> When I type ina Root session h1->Draw("Matrix[i][j]") the plots are
> the ones I expect, but if I try to read h1 with the following macro
>
> Event* event=0;
> h1->SetBranchAddress("event",&event);
>
> for(int i=0;i.....)
> {
> h1->GetEntry(i);
> .....
> .....
> event->Clear();
> }
>
> a segmentation violation occurs. That does not happen
> with a small size matrix (it seems to work well up to Matrix[20][20]).
> Is there something wrong in what I did ?
> Is there some size limit for arrays one can store in a Tree?
> Cheers
>
> Paolo
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