TFile constructor and xroot

ROOT
1

Hi,
I am wondering if there is a reason the TFill constructor cannot handle xroot files - and one must use instead the Open method, i.e.,

TFile f(“xroot:…”)

fails (file does not exist), but

TFile f
f.Open(“xroot:…”)

works.

Thanks,

  • Tom
2

TFile::Open is a static function that returns a TFile. You should call this function when accessing remove objects via the root,xrootd,rfio,http,etc protocols, eg

TFile *f = TFile::Open("http://root.cern.ch/files/alice.root"); f->ls()
Rene