Error msg add if the dat file is empty

used if else

include/dirTree.hpp

@@ -12,19 +12,27 @@ void dirTree()
 
  ifstream driveLetterReader("C:\\SFO\\Data\\DriveLetterKeeper.dat");
 
- while(getline(driveLetterReader, driveLetterHolder))
+ while (getline(driveLetterReader, driveLetterHolder))
  {
  driveLetterHolder = driveLetterHolder;
  }
+ if (driveLetterHolder.empty() == true)
+ {
+ system("cls");
+ cout << "You have not created ant folders yet. Please go to the create mode to create folders first!3" << endl;
+ }
+ else
+ {
+ //Starting the dir tree
+ system("cls");
+ system("color 03");
+ cout << setw(75) << setfill(' ') << "Directory Tree Viewer" << endl
+ << endl;
 
- //Starting the dir tree
- system("cls");
- system("color 03");
- cout<<setw(75)<<setfill(' ')<<"Directory Tree Viewer"<<endl<<endl;
-
- cout<<"Printing the folders structure view inside the selected drive: "<<endl;
- std::cout<<std::endl;
- string treeDir = "tree /f "+driveLetterHolder+":\\\"University Study\"";
- system(treeDir.c_str());
+ cout << "Printing the folders structure view inside the selected drive: " << endl;
+ std::cout << std::endl;
+ string treeDir = "tree /f " + driveLetterHolder + ":\\\"University Study\"";
+ system(treeDir.c_str());
+ }
 }
 #endif // DIRTREE_H