More newbie question - code error

I have a program that reads inputs from file and using a switch statement choose to read more information from other files.

Although I can read the first file ("a.txt"), i can't seems to read the second file ("0.txt").
loc is suppose to be a global variable read from a.txt and is used for loading another set of files.

I don't know what is the problem as the text ("This is a sample text." ) in 0.txt is not loaded or displayed.

Can anyone tell me where did I go wrong?

Thanks in advance.

int LoadLoc()
{
char desc[256];
switch(loc)
{
case 1:
cout << "Loading location. \n";
ifstream b_file ("0.txt");
b_file >> desc;
cout << desc;
b_file.close();
break;
/*
default:
cout << "Loading location. \n";
//break;
*/
}
presskey();
}

Put some more debug lines in it and do some more error checking.
I'm sure if you do that you will find the error yourself:

Code:

int LoadLoc() 
{ 
  char desc[256]; 
  ifstream b_file;

  cout << "LoadLoc: loc = " << loc << endl;

  switch(loc) 
  { 
    case 1: 

      // open file for reading, fails if file does not exist
      b_file.open("0.txt", ios::nocreate);

      if(b_file)
      {
        b_file.getline(desc, 256);
        cout << desc; 
        b_file.close(); 
      }
      else
      {
        cout << "Error: unable to open file 0.txt" << endl;
        return -1;
      }
			
      break; 

    default: 
      cout << "Error: unknown location(" << loc << ")" << endl;
      return -2;
      break; 

  } 
  return 0;
}