Dear rooters,
I have a question during the upgrade of root version to v3.01 for monitoring tools of KLOE. We need to create a TFile including many branches consist of thousands of histograms. In the old version we did in this way:
TFile *f;
char lastdir[4096];
// "lastdir" is the current subdir need to be created. the program gets "lastdir" from the server via network. then
f->mkdir(lastdir, lastdir);
f->Cd(lastdir);
// then fowllowing this way until the end of all subdir created
But now with v3.01 it doesn't work. After long time debugging the program it seems to me that I have to create the absolute dir including parents before calling the function Cd(lastdir), otherwise the Cd(lastdir) does nothing. This change makes the program much more complicated than before. Maybe I did not find the easy way to do this job. Could you tell me if I was wrong?
cheers Meiwen
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