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Posted By

trentonknight on 09/05/10


Tagged

ifstream


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Check File exists

 / Published in: C++
 

Just a lazy way to verify file exists before reading from another function. It may not be the best so feel free to comment on better ways. Just create a string in function you are calling from or main and do this:

string getData, file; ifstream inData; file = checkFileExists(); inData.open(file.c_str()); inData >> getData;

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  1. string checkFileExists(){
  2.     string file;
  3.     ifstream inputFile;
  4.  
  5.     cout << "Enter file name: " << endl;
  6.     cin >> file;
  7.  
  8.     inputFile.open(file.c_str());
  9.     if(inputFile){
  10.         return file;
  11.     }
  12.     else{
  13.         cout << "ERROR: not found!" << endl;
  14.         file.clear();
  15.         file = checkFileExists();
  16.     }
  17.     inputFile.close();
  18.     inputFile.clear();
  19. }

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