Output stream not working without any error

Question

I would like to make program that uses bubble sorting algorithm to sort some data from input program and write sorted values into output file - however everything seems fine, but the output file is empty...

I've tried to use a console as output but it didn't help. I know that there are functions for bubble sorting, but I'm quiet new in c++ topic and would like to gain some experience in it.

#include <iostream>
#include <fstream>
#include <string>

struct Datas
{
    std::string day;
    float value;
};
using namespace std;

int main ()
{
    fstream file_in, file_out;
    string name, line, data;
    Datas current [7];

    cout << "Input file name with data to open" << endl;
    cin>>name;
    file_in.open(name.c_str());

    if (file_in.fail())
    {
        cout << "Unable to open file - try again" << endl;
        //  pause(TIME);
        system ("CLS"); //Clears the console
        main();
    } else {


        cout << "Input output file name to save sort datas" << endl;
        cin>>name;
        file_out.open(name.c_str());

        if (file_out.fail())
        {
            cout << "Unable to open file - try again" << endl;
        } else {

            while (file_in.eof() == 0)
            {
                for (int pointer = 0; pointer < 7; pointer++)
                {
                    file_in >> current[pointer].day >> current[pointer].value;
                }

                string tmp_day;
                float tmp_val;

                for (int current_val = 0; current_val < 7; current_val++)
                {
                    if (current[current_val].value > current[current_val+1].value ||
                        current[current_val].value > current[current_val+2].value ||
                        current[current_val].value > current[current_val+3].value ||
                        current[current_val].value > current[current_val+4].value ||
                        current[current_val].value > current[current_val+5].value ||
                        current[current_val].value > current[current_val+6].value )
                    {
                        tmp_day = current[current_val+1].day;
                        tmp_val = current[current_val+1].value;

                        current[current_val].day = tmp_day;
                        current[current_val].value = tmp_val;

                        tmp_day = current[current_val].day;
                        tmp_val = current[current_val].value;
                    }
                }

                for (int stream = 0; stream < 7; stream++)
                {
                    file_out << current[stream].day << '\t' << current[stream].value << endl;
                }
            }

            file_in.close();
            file_out.close();
            return 0;
            system("PAUSE");    //Keeps console window open after program execution
        }
    }
}