Hi, everyone: I have a task. By using STL, it can be implemented easily. I am thinking of moving to Root. In STL, I use "vector" to store my collection of tracks. then I can (generic algorithm) "sort" the vector in ascending order of start radius of tracks. In Root, How should I do? I noticed that there is a class TObjArray which can store my tracks. But I am not sure if the method TObjArray::sort(Int_t upto=kMaxInt) is what I want. Thanks for any hint. ----------------------------------------------------------------- Wensheng Deng Phone: (516) 344-1052 P.O.Box 825 Fax : Upton, NY 11973, USA Email: deng@cnr2.kent.edu =================================================================
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