#include <fstream>
#include <iostream>
using namespace std;

int main() {
  // declare variables
  ifstream myfile;
  string s;

  // open file for reading
  myfile.open( "hello.dat" );
  // make sure file is opened okay
  if ( ! myfile ) {
    cout << "error opening file :-(\n";
    exit( 1 );
  }
  cout << "file opened a-okay :-)\n";

  // read contents of file until there's nothing left
  while ( ! myfile.eof() ) {
    //  myfile >> s;
    getline( myfile, s );
    if ( ! myfile.eof() ) {
      cout << "s=" << s << endl;
    }
  } // end of while

  // close file
  myfile.close();

} // end of main()