Hi all, until now I worked on SUN with SunOS 5.6 and root 3.02/06 as following: 1) from .hbook at .root using h2root of root 3.02/06 2) in ROOT prompt h1->MakeClass() (h1 is my tree) 3) I compile my program example.cc example.h Example.cpp with Sun compiler CC5 that create a file .root for my analisys at this level I haven't any problem (all variables on my tree are full). Now on new 2 machines with linux RedHat 9.0 gcc 3.2.2 (20030222 Red Hat Linux 3.2.2-5 this i have with command gcc -v) and one with ROOT 4.00/04 and the other with ROOT 3.10/02 I have some problem, I work as following: 1) from .hbook to .root with h2root of root 4.00/04 2) in root prompt h1->MakeClass() 3) I compile my program example.cc example.h Example.cpp with gcc compiler and I have in output a .root file with a tree for my analisys. At this level I have a problem: any variables in my tree are empty and when I click on leaf in the browser the canvas appear but it is white (empty). Where is a problem ? Another question: why the file .root that I have converted with h2root on Sun are not good for Linux machine (and viceversa) ? Thanks Francesco.
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