In the following script gROOT->Reset(); GetDirEntryExample(){ // Line to demonstrate that gSystem-> works. gSystem->Exec("ls *2.C"); char * fName[256]; // get a file name from pwd. fName = gSystem->GetDirEntry("./"); cout << "The first file name is " << & fName << " 1 " << endl; } gives the result root [6] .L GetDirEntryExample.C root [7] GetDirEntryExample() HistoComp2.C HistoCompairison2.C The first file name is (nil) 1 (int)1085959104 root [8] Why do I get nil instead of string with the first file name in the directory and what does (int)1085959104 signify? -- --------------------------------------------------- | Stanley S Forrester Office: B0 Trailers 139-C | | UC Davis Email: sforrest@fnal.gov | | CDF MS 318 Fermilab Phone: (630) 840 2388 | | PO Box 500 Fax: (630) 840 2968 | | Batavia, IL 60510 | --------------------------------------------------- "We know finite disappointment, but we know infinite hope" - Martin Luther King. I thought this appropriate on the day after the republican electorial victory. ssf
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