Create a Store Management System in C++ Language

#include<conio.h>
#include<iostream.h>
class driver
{
double i_code[10],i_price[10],n;
char i_name[15][10];
public:
void getdata();
void friend discount(driver);
};

void driver::getdata()
{
int i;
cout<<"How Many Item Do You Want Enter";cin>>n;
    for(i=0;i<n;i++)
    {cout<<"enter items:-"<<endl;
    cout<<"\n\tEnter Item Code  :-\t";cin>>i_code[i];
    cout<<"\n\tEnter Item Name  :-\t";cin>>i_name[i];
    cout<<"\n\tEnter Item Price :-\t";cin>>i_price[i];
    }
}
void discount(driver m)
{
int tp=0,dis,i;
clrscr();

    for(i=0;i<m.n;i++)
    {
    cout<<"\n\n\n\tItem Code  :-\t"<<m.i_code[i];
    cout<<"\n\tItem Name  :-\t"<<m.i_name[i];
    cout<<"\n\tItem Price :-\t"<<m.i_price[i];
    dis=(m.i_price[i]*15)/100;
    cout<<"\n\tDiscount   :-\t"<<dis;
    cout<<"\n\tTotal Price:-\t"<<m.i_price[i]-dis;
    tp=tp+m.i_price[i]-dis;
    }
    cout<<"\n\n\t Total Bill Amount Is \t"<<tp;
    cout<<"\n\n\t This Bill Is Computer Generated";

}
void main()
{
    textcolor(111);
    clrscr();
    driver p;
    p.getdata();
    discount(p);
    getch();
}