Restaurant Billing Program

[m4h0n3y95]

I am stuck on how to get this program to work properly. It has to use information from a .dat file to calculate the Subtotal, Tax, Tip, and Total amount needed to be paid. All it does is continually spew numbers out.

#include <iostream>
#include <fstream>
#define filename "orders.dat"

using namespace std;

int main()
{
  float subtotal;
  float salesTaxTotal;
  float tipTotal;
  float total;
  double salesTax = .06;
  double tipLow = .18;
  double tipHigh = .20;

  ifstream ins;

  int num_people;
  int orders;
  int subtot = 0;

  ins.open(filename);
  if (ins.fail())
    cerr << "ERROR: File Missing." << endl;
  else
    {

      while (!ins.eof())
	{
	  ins >> num_people;
	  ins >> orders;
	  subtot += orders;
	  cout << endl  << "Subtotal:" << subtot << endl;
	  num_people = 0;
	  orders = 0;
	  for (int i=1; i <= num_people; i++)
	    {
	      ins >> num_people;
	      ins >> orders;
	      salestx = subtot * salesTax;
	      cout << endl << "Total Sales Tax:" << salestx << endl;
	    }
	  {
	    ins >> num_people;
	    ins >> orders;
	    if (num_people < 5)
		tiptot = tipLow * subtot;
		cout << endl << "Tip:" << lowtiptot << endl;
		else (num_people >= 5)
		       tiptot = tipHigh * subtot;
		cout << endl << "Tip:" << tiptot << endl;
		}
	    {
	    ins >> num_people;
	    ins >> orders;
	    totbill = tiptot + salestx + subtot;
	    cout << endl << "Total Due:" << totbill < endl;
	  ins.read((char *)&num_people, 4);
	    }
	}
    }
      return 0;
    }