Hello all. I have a question about the AccessPathName command and how to know if a file exists. I tried this command on the terminal: root [0] gSystem->AccessPathName(“nomefile”) If the file exists, the terminal says: (Bool_t)0 If it doesn’t exist, it says: (Bool_t)1 This is what I was ex…

You can make it simpler using Form : for (int j=0; j<34; j++) { ifstream myfile; if(gSystem->AccessPathName(Form("file%d.txt",j))){ cout << "ERROR: The file doesn't exist\n"; } else { myfile.open(Form("file%d.txt",j)); cout << "The file exists\n"; for (int i=0; i<65…

Home | News | Documentation | Download | Privacy Notice

ROOT Forum

AccessPathName to know if a file exists

ROOT

← previous page

Home
Categories
Guidelines
Terms of Service
Privacy Policy

Powered by Discourse, best viewed with JavaScript enabled