ifstream infile>>enum does not work. Why?

[Sh59216C]

For some reason I can input all data form infile, except enum datatype , Anyone has any idea why? and how to correct it?

void sortRating()
{
     int index, counter, iteration; // counter = total number of stocks in database; iteration is sort done
     counter = checkDatabase();
     stock list[counter+2];    //Make a array according to database size; extra 1 for gap, 1 for temp
     ifstream infile;
     infile.open("database.txt", ios::in);
     
     while (!infile.eof())
     {
           infile.ignore(1000,'\n');
           for(index = 0; index < counter; index ++)
           {
                     infile >> list[index].ticker >> list[index].price >> list[index].ma50 >> list[index].ma200 >> list[index].EPS ;
                     infile >> list[index].perChangeMA50 >> list[index].perChangeMA200; 
                     infile >> list[index].rating;  // WHERE THE PROGRAM DOES NOT WORK. 
//WITH COMMENTS 322 C:\Users\Gary Lee\Desktop\cpp //Project\working_on_sor rating.cpp 
//no match for 'operator>>' in 'infile >> list[index].stock::rating' 
//my infile input is a string "Strong_buy" not 0, 1, 2, 3
           }     } 
     for(iteration = 1; iteration < counter; iteration++)
     {
                   for (index = 0; index < counter - iteration; index++)
                   if (list[index].rating > list[index+1].rating)
                   {
                      list[counter+2] = list[index];
                      list[index] = list[index+1];
                      list[index+1] = list[counter+2];
                   }
     }
                                   

}

[firedraco]

Because an enum is its own type; it's the same reason you can't just serialize an arbitrary class you made without writing any operators for it.

[Sh59216C]

infile >> ratingTemp;
ist[index].rating = static_cast<stock_rating>(ratingTemp);

does this help?

[Sh59216C]

no its does not.. coz my enum cannot be input as int then static cast ,, what should i do?

[Peter87]

In what format is the enum stored in the file?

[Sh59216C]

Thanks Peter, you are right,, I stored it as a string in the file,, I have changed storing it into 0 1 2 3 4 5 ,, but in that way, have to run to the program to see the rating.