Re: TTree containing arrays
Rene Brun (Rene.Brun@cern.ch)
Tue, 18 Mar 1997 08:20:08 +0100
Glenn E. Cooper wrote:
>
> Hi,
>
> Is it possible to use TTree to hold and access arrays of basic types
> (i.e. Int_t)? In particular, I would like to have defined a class which
> has arrays as data members, fill objects of such a class, and save them
> in a tree:
>
> class A {
> ...
> Int_t arr1[10];
> Int_t arr2[10];
> ...
> }
>
> a = new A();
> t = new TTree("T","test tree");
> b = t->Branch("A","A",&a,32000,1);
>
> ... then fill the tree ...
>
> I have not been able to get this to work. In particular this is
> preventing me from being able to use a tree to hold classes like:
>
> class B {
> ...
> TH1S* h1;
> ...
> }
>
> Should any of this work, or is support for this planned?
This is implemented in ROOT version 1.00.
Rene Brun