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

double total1(double price, int quantity)
{
return price*quantity;
}
double sum(double total1)
{
return total1+=total1;
}

int main()
{
char answer;
double price;
int code;
int quantity;
char name;



do
{
cout<<"item name: ";
cin>>name;
cout<<"item code: ";
cin>>code;
cout<<"quantity: ";
cin>>quantity;
cout<<"item price: ";
cin>>price;

cout<<"item name"<<setw(10)<<"code"<<setw(10)<<"price"<<setw(10)<<"quantity"<<setw(10)<<"total"<<endl;
cout<<name<<setw(10)<<code<<setw(10)<<price<<setw(10)<<quantity<<setw(10)<<total1()<<endl;
cout<<"continue?";
}
while(answer=='y'||answer=='Y');
{
cout<<"please pay: "<<sum()<<endl;
}
system("pause");
return 0;
}
i do the correction on my project, but then why this one- too few arguments to function `double sum(double)' come out?
i tried to google the problem, it says that my funtion argument is not enuf, wats the problem?

---

Added on December 4, 2009, 11:13 pm

double total1(double price, int quantity)
{
return price*quantity;
}

cout<<name<<setw(10)<<code<<setw(10)<<price<<setw(10)<<quantity<<setw(10)<<total1()<<endl;