Hi, Replace the line: TTree *newtree = oldtree->CopyTree("h10005"); by TTree *newtree = (TTree*)oldtree->CloneTree(); Rene Brun On Thu, 29 May 2003, Meiwen wrote: > Dear rooters, > I want to copy some sub directories from different root files in one root file. But I got always the " *****break segment violation*****". Maybe I did it in a wrong way. Could you please give me a hand? > The system is AIX4.3.3, the root version is v3.01-6 and the code is as following: > > TFile f(calmonbha_in); > TTree *oldtree = (TTree*) f.Get("h10005"); > TFile *fout = new TFile(current_out, "recreate"); > //TTree *newtree = oldtree->CloneTree(); neither Clone tree works > TTree *newtree = oldtree->CopyTree("h10005"); > newtree->Write(); > fout->Write(); > > Here in the code I got one histogram only for test. I need to copy whole directory named "GENERAL;1". "h10005" is only one of the histograms inside the directory. I have also attempted to use TDirectory::Get() but fail too. > > Best Wen Mei >
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