Scott Sampson wrote: > I'm having a peculiar problem: I have a column-wise ntuple which I convert > to root using h2root. When I look at the ntuple using h2->Print() I see > entries like > > *Branch :fm_isl : fm_isl/I > *Entries : 1000 : Total Size = 0 bytes File Size = > *Baskets : 0 : Basket Size = 8000 bytes Compression= 1.00 > * > .............................................................................* > *Branch :fm_id : fm_id[fm_isl][200]/I > *Entries : 1000 : Total Size = 2357620 bytes File Size = > *Baskets : 366 : Basket Size = 8000 bytes Compression= > *......................................................................... > > etc... where fm_isl define the length of the array fm_id. Now, fm_isl has > a max value of 30. However, when I do an h2->MakeCode(), my variable > declarations come out wrong. The macro has statements like: > > Int_t fm_id[0][200]; > > Other variable-length arrays also have screwed up indices (not > necessarily 0, but just incorrect numbers). What's going > on? I change the declarations to their correct values by hand. > > Now, I'm having a second problem. I don't know if it is related to the > above, but in the macro I try doing something like > > cout << fm_id[0][0] > > and I get the following error: > > Error: No symbol fm_id[0][0] in current scope FILE: . . . . > *** Interpreter error recovered *** > > *** Break *** segmentation violation > > And I have to quit root. Why does root not see the variable declared > above? > > Third, any time I run this macro using the shell from MakeCode(), I > can only run it once. The second time I get a "*** Break *** segmentation > violation" error message, and again must quit root. Is there any solution > to these problems? Thanks, > > Scott Sampson > Columbia University I have fixed this problem in TTree::MakeCode. Thanks for reporting. For the time being, edit the function automatically generated. I cannot reproduce your problem with cout <<fm_id[0][0]. I also do not understand why you cannot run the macro twice? Are you making other changes in the generated macro? I assume you are using the released version 1.03/09. Rene Brun
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