ifstream file (fileName) ; if (!file. is_open ()) { cout << "Could not open file: " << fileName << endl; return 1 ; string line; while ( getline (file, line)) { vector< int > row; istringstream ss (line) ; int number; while (ss >> number) { row. push_back (number); if (ss. peek () == ',' ) { ss. ignore (); data. push_back (row); file. close (); for ( const auto &row : data) { for ( const auto &number : row) { cout << number << " " ; cout << endl; return 0 ; ShaderJoy Unreal Engine