Dear ROOTers, I encountered the following crash in ROOT 2.20/06 on windows95. I have a class Aap in which protected: TH1F* histo; private: TDirectory* fDir; are datamembers. In the default constructor I do Aap::Aap() { fDir=gDirectory->mkdir("Aap","test directory"); histo=0; } whereas I have also the public memberfunctions void Aap::Fill() { fDir->cd(); histo=new TH1F(........); .... // some code to fill the histogram } void Aap::Dir() { fDir->ls(); } To test my code I have the following ROOT macro // macro test.C { gSystem->Load("Aap.dll"); Aap p; p.Fill(); Aap q; q.Fill(); } The following ROOT session crashes : Root> .x test.C Root> q.Dir() // works ok Root> p.Dir() // ROOT crashes with a pagefault in ROOT_BASE when I use Root> gDirectory->ls() it also shows me only the directory for q. I have the feeling that the problem is related to the fact that I create 2 directories with the same name by creating 2 objects of the same class. Can anyone tell me what is wrong here and how I can cure it ? -- Cheers, _/_/ _/ _/ _/_/_/_/ _/ _/ _/ _/ _/ _/ _/ _/ _/ _/ _/ _/ _/ _/ _/_/ _/ _/_/ _/ _/ _/ _/ _/ _/ _/ _/_/_/_/ _/ _/ *----------------------------------------------------------------------* Dr. Nick van Eijndhoven Department of Subatomic Physics email : nick@phys.uu.nl Utrecht University / NIKHEF tel. +31-30-2532331 (direct) P.O. Box 80.000 tel. +31-30-2531492 (secr.) NL-3508 TA Utrecht fax. +31-30-2518689 The Netherlands WWW : http://www.phys.uu.nl/~nick Office : Ornstein lab. 172 ---------------------------------------------------------------------- tel. +41-22-7679751 (direct) CERN PPE Division / ALICE exp. tel. +41-22-7675857 (secr.) CH-1211 Geneva 23 fax. +41-22-7679480 Switzerland CERN beep : 13+7294 Office : B 160 1-012 *----------------------------------------------------------------------*
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