views:

36

answers:

1
#include<iostream>
#include<fstream>
#include<cstdlib>
#include<iomanip>
using namespace std;
int main()
{
    ifstream in_stream; // reads ITEMSLIST.txt
    ofstream out_stream1; // writes in listWititems.txt
    ifstream in_stream2; // reads PRICELIST.txt
    ofstream out_stream3;// writes in listWitprices.txt
    ifstream in_stream4;// read display.txt
    ofstream out_stream5;// write showitems.txt
    double p1=0.0,p2=0.0;
    int wrong=0;
    int count =0;
    char next;
    in_stream.open("ITEMLIST.txt", ios::in); // list of avaliable items
     /*if( in_stream.fail() )// check to see if itemlist.txt is open
            {
               wrong++;   // counts number of errors
               cout << " the error occured here0, you have " << wrong++ << " errors"  << endl;
               cout << "Error opening the file\n" << endl;
               exit(1);
            }
         else{
             cout << " System ran correctly " << endl;
            }

        */
    out_stream1.open("listWititems.txt", ios::out); // list of avaliable items
    /* if( out_stream1.fail() )// check to see if itemlist.txt is open
            {
               wrong++;
               cout << " the error occured here0, you have " << wrong++ << " errors"  << endl;
               cout << "Error opening the file\n" << endl;
               exit(1);
            }
         else{
             cout << " System ran correctly " << endl;
            }
    */       
    in_stream2.open("PRICELIST.txt", ios::in);           
     /*if( in_stream2.fail() )// check to see if itemlist.txt is open
            {
               wrong++;
               cout << " the error occured here0, you have " << wrong++ << " errors"  << endl;
               cout << "Error opening the file\n" << endl;
               exit(1);
            }
         else{
             cout << " System ran correctly " << endl;
            }
     */
    out_stream3.open("listWitdollars.txt", ios::out);            
     /*if( out_stream3.fail() )// check to see if itemlist.txt is open
            {
               wrong++;
               cout << " the error occured here0, you have " << wrong++ << " errors"  << endl;
               cout << "Error opening the file\n" << endl;
               exit(1);
            }
         else{
             cout << " System ran correctly " << endl;
            }
    */
    in_stream4.open("display.txt", ios::in);
     /*if( in_stream4.fail() )// check to see if itemlist.txt is open
            {
               wrong++;
               cout << " the error occured here0, you have " << wrong++ << " errors"  << endl;
               cout << "Error opening the file\n" << endl;
               exit(1);
            }
         else{
             cout << " System ran correctly " << endl;
            }

    */
    out_stream5.open("showitems.txt", ios::out);
     /*if( out_stream5.fail() )// check to see if itemlist.txt is open
            {
               wrong++;
               cout << " the error occured here0, you have " << wrong++ << " errors"  << endl;
               cout << "Error opening the file\n" << endl;
               exit(1);
            }
         else{
             cout << " System ran correctly " << endl;
            }*/
    in_stream.setf(ios::fixed);
        while(!in_stream.eof()) // reads to end of file and gets p1 which is itemnum, clears and gets next character
            {
            in_stream >> p1;
            cin.clear();
            cin >> next;
            }
    out_stream1.setf(ios::fixed);
        while (!out_stream1.eof())
            {
            out_stream1 << p1;
            cin.clear();
            cin >> next;
            }
    in_stream2.setf(ios::fixed);
    in_stream2.setf(ios::showpoint);
    in_stream2.precision(2);
        while(!in_stream2.eof())  // reads file to end of file
            {
                  in_stream2 >> p1 >> p2 >> count; // gets p1,p2, and count which is current total
                  in_stream2 >> p2;
                  p1 += p2;
                  p2++;
                  cin.clear();  // allows more reading
                  cin >> next;
                  return p1, p2;
             }

    out_stream3.setf(ios::fixed);
    out_stream3.setf(ios::showpoint);
    out_stream3.precision(2);
        while(!out_stream3.eof())  // reads file to end of file
            {
                  out_stream3 << p1 << p2 << count;
                  out_stream3 << p2;
                  p1 += p2;
                  p2++;
                  cin.clear();  // allows more reading
                  cin >> next;
                  return p1, p2;
             }

    in_stream4.setf(ios::fixed);
    in_stream4.setf(ios::showpoint);
    in_stream4.precision(2);
        while (!in_stream4.eof())
        {
            in_stream4 >> p1 >> p2 >> count;
            cin.clear();
            cin >> next;
        }
    out_stream5.setf(ios::fixed);
    out_stream5.setf(ios::showpoint);
    out_stream5.precision(2);
        out_stream5 <<setw(5)<< " itemnum " <<setw(5)<<" price "<<setw(5)<<" curr_total " <<endl; // sends items and prices to receipt.txt 
        out_stream5 << setw(5) <<  p1 << setw(5) <<p2 << setw(5)<< count; // sends items and prices to receipt.txt 
        out_stream5 << " You have a total of " << wrong++ << " errors " << endl; 


  in_stream.close(); // closing files.
  out_stream1.close();
  in_stream2.close();
  out_stream3.close();
  in_stream4.close();
  out_stream5.close();
  system("pause");

}
A: 

i believ it is a problem with the ifstreams because ITEMSLIST.txt and PRICELIST.txt are the files that i downloaded and when "//" out the other files its only the ifstreams that are not opening correctly.

do anyone else know what it might be that is causing for the files not to open correctly??