C++ ifstream Read text file line by line

#include <iostream>
#include <fstream>
#include <cstdlib>
#include <string>
using namespace std;
int main()//from  w ww. ja  v  a2 s.  c o m
{
   string filename = "prices.dat";
   string line;
   ifstream inFile;
   inFile.open(filename.c_str());
   if (inFile.fail())  // check for successful open
   {
      cout << "\nThe file was not successfully opened\n Please check that the file currently exists." << endl;
      exit(1);
   }
   // Read and display the file's contents
   while (getline(inFile,line))
      cout << line << endl;
   inFile.close();
   return 0;
}