Thread: Reading string from outside data file

Try this:

Code:

#include <iostream>
using namespace std;

int main()
{
  double input;
  cin >> input;
  cout << input;

  double input2;
  cin >> input2;
  cout << input2;
  return 0;
}

Try typing in any string for the first input. This program will fail the same way on the next input as in your program. This is because when you attempt to read in a string ("Willy") as a double (some numerical value), cin fails.

Code:

in >> fname >> lname >> score;
      string  string  double   <- Expected
      Toots   Sweet     87   <- First iteration
      76       90       -1   <- Second iteration

I'll leave it up to your creative intellect to figure out how to avoid reading in a string as a double in your case.