Hello, I'm working on a software based on the ROOT framework. I'm wortking on RH7.3 with gcc 2.96. My software works perfectly fine when I use ROOT version 3.10/02 but when I tried ROOT 4.00/08, I sudenly got troubles. Here is a quick explanation of what I'm doing : I have one object (celled TExpositionMap) in which I store a pointer to a TH2D object (let's call it h). Several objects TExpositionMap are stored in a TObjArray during the execution to achieve some calculations with the content of different histograms h. The TH2D object exists when I fill the object array but seems to desappear after so that any operation on h (h is obtained with TObjArray::At()) like GetBinContent() triggers a Seg. Fault. Given these (maybe poor) explanations, could you give me a hint about what could happen ? Thanks for your answer ! Bye, ------------------------------------------------------ Julien Bolmont Ingénieur diplômé - doctorant Groupe d'Astroparticules de Montpellier
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