Hi,
I would like to program file open routine
to look for alternative file if the first file doesn’t exist like:
ifstream in_file;
in_file.open(“file.root”);
if (in_file.fail()) {
in_file.open(“file2.root”);
}
How can I do like above using TFile?
TFile in_file ;
in_file->Open(“file.root”);
in_file->Fail(); <-- there is no such a function…