For this project I am suppose to create a data file which includes this info:
Miller Ford Mustang 28000
Miller Ford Escape 23000
Miller Ford Van 32000
Sam_Car Ford Focus 17000
Sam_Car Ford Ranger 18250
Sam_Car Chev Impala 31500
Tina_Sells Chev Camero 33000
Tina_Sells Chev SUV 38000
Then I am suppose to create a program that reads in all the data but uses a control break, one that subtotals each salespersons sales. then it it suppose to display the read data including the subtotal, and earned commission which is 4% of the total sales (subtotal).
This is what I have so far, it read all the data and displays it. I just need help on how to start on the subtotaling for each seller? Can anyone show me an example or lead me in the direction to a solution for my program? Thanks.
///Preprocessive directives
#include "stdafx.h"
#include <iostream>
#include <fstream>
#include <iomanip>
using namespace std;
//Prototypes
void initialization();
void process ();
void eoj ();
void openIt();
void readIt();
void writeIt();
void calculateIt();
void accumulateIt();
//Input Records
ifstream inputFile;
char sSalesPerson[15];
char sMake[10];
char sModel [10];
int iSellingPrice;
//Program Variables
int iEarnedCommission;
int main()
{
cout << "\n\t\tWeekly Car Sales Report\n\n";
cout << "Salesperson Make Model Selling Price\n";
cout << "-------------------------------------------------\n";
initialization();
if (!inputFile.fail())
{
process();
}
eoj();
return 0;
}
void initialization()
{
openIt();
return;
}
void process ()
{
readIt();
while (!inputFile.eof())
{
calculateIt();
accumulateIt();
writeIt();
readIt();
}
return;
}
void eoj ()
{
inputFile.close();
return;
}
void openIt()
{
inputFile.open("c:\\auto.dat");
if (inputFile.fail())
cout << "AUTO file open failed" << endl;
return;
}
void readIt()
{
inputFile >> sSalesPerson >> sMake >> sModel >> iSellingPrice;
return;
}
void calculateIt()
{
return;
}
void accumulateIt()
{
return;
}
void writeIt()
{
cout << left << setw(15) << sSalesPerson << setw(12)<< sMake << setw(12) << sModel << setw(12)
<< iSellingPrice << endl;
return;
}
Unsolved 
