Hi, rooters,
I tried to use TFile::Open(char *name) in a for-loop to open my files:
char filenames[NUMBER_OF_FILES]; …
TFile *f1=new TFile();
for(int i=0; i<NUMBER_OF_FILES; i++)
{
f1->Open(filenames[i]);
f1->ls(); //shows an empty file
localHisto= (TH1F*)f1->Get(“histo”); //here it crashes, because this object “histo” is not found
…
f1->Close();
}
If I don’t open this TFile, but create a new TFile-Object in each loop, it works. So I seek for explanation, why TFILE::Open returns an empty file… Do I something wrong with options?