Stuck at read/write from file to file

[halopower67]

Hey guys, i am currently working on an assignment of an intro to c++ class, and i am being asked to read from a file called Bands.txt which has a list of band information (rank/sales/band name (in that order)) and then write from that Bands.txt file to a file called Results.txt and it's supposed to have the sales converted from a number to asterisks (ex. 5 to ******).
What i have so far is the reading part from the Bands.txt, but i cannot get the program to create Results.txt and write the list there :(
Any help is appreciated, thanks :)
Here's what i have:

#include <cstdlib>
#include <iostream>
#include <fstream>
#include <iomanip>

using namespace std;

int main(int argc, char *argv[])
{
    fstream readFile;
    const int SIZE = 100;
    char info[SIZE];
    
    
    readFile.open("Bands.txt", ios::in);
    cout << "Here's the rank/sales/band name: \n";
    
    if (readFile.fail())
    {
        cout << "ERROR: cannot open file! \n";
    }       
    readFile.getline(info, SIZE);
    while(!readFile.eof())
    {
        cout << info << endl;
        readFile.getline(info, SIZE);
    }
    readFile.close();

[ne555]

Just use another fstream in output mode

[halopower67]

Yeah but the thing is getting the contents of Bands.txt to get written to Results.txt
I did another fstream in output mode but the thing is that only the last line in the list that is in Bands.txt is written to Results.txt, the rest was ignored.

[halopower67]

here's hoping for more help :(

[ne555]

either write every line as soon as you read it, or
store all the lines, traverse the container, and output the lines.

I don't see any file stream in output mode in your code.

[halopower67]

Oh well here is the new code:

#include <cstdlib>
#include <iostream>
#include <fstream>
#include <iomanip>

using namespace std;

int main(int argc, char *argv[])
{
    ifstream readFile;
    const int SIZE = 100;
    int num1 = 0;
    int num2 = 0;
    char info[SIZE];
    int counter = 0;
    
    readFile.open("Bands.txt", ios::in);
    cout << "Here's the rank/sales/band name: \n";
    
    if (!readFile)
        cout << "ERROR: cannot open file! \n";  
    while(!readFile.eof())
    {
        readFile >> num1;
        cout << num1;
        readFile >> num2;
        cout << setw(2)<< num2;
        readFile.getline(info, SIZE);
        cout << info << endl;
    }
    
    readFile.close();
        
    ofstream myfile;
    myfile.open ("Results.txt", ios::out);
    if (!myfile)
        cout << "ERROR: cannot open file! \n";
    while (counter < 10)
    {
        myfile << num1;
        myfile << setw(2)<< num2;
        myfile << info << endl;
        counter++;
    }
    
    myfile.close();
           
    system("PAUSE");
    return EXIT_SUCCESS;

The problem im having now is that every line in Results.txt is the last line in Bands.txt, also, i am stuck at converting an int into asterisks.

[thedude11]

Im having the same situation. Also, i cant figure out how to turn put them in rank order, or to change the sales #s to ****'s.

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

int main ()
 {
  string line;
  int count = 0;
  
  
  ifstream readfile ("Bands.txt");
  if (readfile.is_open())
  {
    while ( readfile.good() )
    {
      getline (readfile, line);    
      cout << line << endl;
    }
    readfile.close();
  }
  
    else cout << "Unable to open file"; 


  ofstream myfile ("Results.txt");
  if (myfile.is_open())
  {
   
   
    myfile.close();
  }
  else cout << "Unable to open file";

    system("PAUSE");
    return EXIT_SUCCESS;
}

[ne555]

of course you will output the same line, if you aren't change it

 while (counter < 10) //why 10?
    {
        myfile << num1;
        myfile << setw(2)<< num2;
        myfile << info << endl; //info never changes
        counter++;
    }

i am stuck at converting an int into asterisks.

std::cout<<'*'; this will print one asterisk. Repeat it n times.