Question on TSystemDirectory

[vaibhavtewari]

Hi,

thanks for supporting the community, I have a question which I need to understand. When I run bertrand’s code
as unnamed macro in the following page

Open files in a directory with a for loop

Hi ! I’m new to ROOT and this Forum, so hopefully I’ve posted my problem in the right place! Right now I’m using Root in Windows 7, I’ve managed to plot histograms and fit them. Now i would like to loop inside a directory with the files containing the information for my histograms. I tried this way : { ifstream inn; char dir[]="C:/root/folder/"; for (Int_t i=0; i<60; i++) { char name=i; inn.open(dir+name); Int_t num=0; string s1="no name",s2="no name"; inn>>s1>>s2>>num; …

I get /home/vaibhav and /home/vaibhav/rms_folder/rms_compute_S6A_50_1024Hz_attribute_masked/output, before and after executing the code, which means my working directory for root prompt changes.

I believe there will be many ways to come back to /home/vaibhav on the same root promt, kindly suggest some of them.

regards,
Vaibhav

[Pepe_Le_Pew]

TString cwd(gSystem->pwd()); // "save" the name of the "current working directory" // ... do whatever you want ... gSystem->cd(cwd.Data()); // "go back" to the old ("saved") subdirectory Note that this is the same solution as shown here: [url]TSystemDirectory::GetListOfFile null pointer
See also: http://root.cern.ch/root/html/TSystem.html

[vaibhavtewari]

Thank You for explaining. Somehow the discussion topics you shared are not visible in google search.

-Vaibhav