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Strange error with setprecision ()

jsnookiii (11)
OK, so I am having a strange error occur in a small bit of code I'm writing and from what i can tell it shouldn't be happening. The error occurs when trying to force all my QTY items to display a decimal point and the first one doesn't. Here is the code. It only happens on line 57 of the code and i can not figure out why. Please Help.
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// NWPC1.cpp : Defines the entry point for the console application.
// Console App to gain retail info and display a sample invoice
//James M Snook III 09/20/12

#include "stdafx.h"
#include <iostream>
#include <iomanip>
#include <string>

using namespace std;

int main ()
{
	//Set Variables
	double nwpc;        // number of NW-PC
	double sdo;         // Number of Second Drive Options
	double camera;      // Number of Cameras
	double software;    // Number of Software Bundles
	double nwpct;       // Total cost of NW-Pc @ $1498.23
	double sdot;        // Total cost of Second Drive Option @ $84.00
	double camerat;     // Total Cost of Cameras @ $119.00
	double softwaret;   // Total Cost of Software @ $49.00
	double subtotal;    // Total Cost Before Tax
	double stax;        // Total Tax with a tax rate of 7.65%
	double total;       // Complete total of everything including tax
	string junk;

	// Get input
	cout << "Enter total Number of NW-PC's being purchased. ";
	cin >> nwpc;
	cout <<  "Enter the Number of Second Drive Options being purchased. ";
	cin >> sdo;
	cout << "Enter the Number of Cameras being purchased. ";
	cin >> camera;
	cout << "Enter the Number Software Bundles being Purchased. ";
	cin >> software;

	// Calculate 
	nwpct = (nwpc * 1498.23);
	sdot = (sdo * 84.00);
	camerat = (camera * 119.00);
	softwaret = (software * 49.00);
	subtotal = (nwpct +sdot + camerat + softwaret);
	stax = (subtotal * .0765);
	total = (subtotal + stax);

	//Output
	cout << endl << setw (32) << "*************************" << endl;
	cout << endl << setw (28) << "NewWave Computers"
		<< endl << setw (25) << "123 Main St"
		<< endl << setw (30) << "Somewhere, MO 64444";
	cout << endl << endl << setw (3) << "Qty" << setw (22) << "   Item                    " << " " << setw (10) << "Cost      ";
	cout << endl << setprecision(0) << setw (3) << nwpc << setw (23) << "   NW-PC               " << "$ "<< fixed << showpoint << setprecision(2) << setw(8) << nwpct ;
	cout << endl << setprecision(0) << setw (3) << sdo << setw (22) << "   Second Drive Option " << "$ "<< fixed << showpoint << setprecision(2) << setw(8) << sdot ;
	cout << endl << setprecision(0) << setw (3) << camera << setw (22) << "   Camera              " << "$ "<< fixed << showpoint << setprecision(2) << setw(8) << camerat ;
	cout << endl << setprecision(0) << setw (3) << software << setw (2) << "   Software Bundle     " << "$ "<< fixed << showpoint << setprecision(2) << setw(8) << softwaret ;
	cout << endl << setw(36) << "-----------";
	cout << endl << setw(25) << "Subtotal " << " $ " << fixed << showpoint << setprecision(2) << setw(8) << subtotal;
	cout << endl << setw(25) << "Sales Tax " << " $ " << fixed << showpoint << setprecision(2) << setw(8) << stax;
	cout << endl << setw(36) << "-----------";
	cout << endl << setw(25) << "Total " << " $ " << fixed << showpoint << setprecision(2) << setw(8) << total;

	// Pause Screen
	cout << endl << endl << "Press any Key then hit Enter to Exit...";
	cin >> junk;

	return (0);
}
Last edited on
whitenite1 (1785)
@jsnookii

Not sure why this way will put a decimal point into the display, but it works.

Show decimal point and a zero..
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//Output
	cout << endl << setw (32) << "*************************" << endl;
	cout << endl << setw (28) << "NewWave Computers"
		<< endl << setw (25) << "123 Main St"
		<< endl << setw (30) << "Somewhere, MO 64444";
	cout << endl << endl << setw (4) << "Qty" << setw (12) << "Item" << setw (19) << "Cost";
	cout << endl << showpoint << setprecision(2) << setw (4) << nwpc << setw (22) << "   NW-PC               " << "$ "<< fixed << showpoint << setprecision(2) << setw(8) << nwpct ;
	cout << endl << setprecision(1) << setw (4) << sdo << setw (22) << "   Second Drive Option " << "$ "<< fixed << showpoint << setprecision(2) << setw(8) << sdot ;
	cout << endl << setprecision(1) << setw (4) << camera << setw (22) << "   Camera              " << "$ "<< fixed << showpoint << setprecision(2) << setw(8) << camerat ;
	cout << endl << setprecision(1) << setw (4) << software << setw (2) << "   Software Bundle     " << "$ "<< fixed << showpoint << setprecision(2) << setw(8) << softwaret ;
	cout << endl << setw(37) << "-----------";
	cout << endl << setw(26) << "Subtotal " << " $ " << fixed << showpoint << setprecision(2) << setw(8) << subtotal;
	cout << endl << setw(26) << "Sales Tax " << " $ " << fixed << showpoint << setprecision(2) << setw(8) << stax;
	cout << endl << setw(37) << "-----------";
	cout << endl << setw(26) << "Total " << " $ " << fixed << showpoint << setprecision(2) << setw(8) << total;


Show decimal point with NO zero..
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//Output
	cout << endl << setw (32) << "*************************" << endl;
	cout << endl << setw (28) << "NewWave Computers"
		<< endl << setw (25) << "123 Main St"
		<< endl << setw (30) << "Somewhere, MO 64444";
	cout << endl << endl << setw (4) << "Qty" << setw (12) << "Item" << setw (19) << "Cost";
	cout << endl << showpoint << setprecision(1) << setw (4) << nwpc << setw (22) << "   NW-PC               " << "$ "<< fixed << showpoint << setprecision(2) << setw(8) << nwpct ;
	cout << endl << setprecision(0) << setw (4) << sdo << setw (22) << "   Second Drive Option " << "$ "<< fixed << showpoint << setprecision(2) << setw(8) << sdot ;
	cout << endl << setprecision(0) << setw (4) << camera << setw (22) << "   Camera              " << "$ "<< fixed << showpoint << setprecision(2) << setw(8) << camerat ;
	cout << endl << setprecision(0) << setw (4) << software << setw (2) << "   Software Bundle     " << "$ "<< fixed << showpoint << setprecision(2) << setw(8) << softwaret ;
	cout << endl << setw(37) << "-----------";
	cout << endl << setw(26) << "Subtotal " << " $ " << fixed << showpoint << setprecision(2) << setw(8) << subtotal;
	cout << endl << setw(26) << "Sales Tax " << " $ " << fixed << showpoint << setprecision(2) << setw(8) << stax;
	cout << endl << setw(37) << "-----------";
	cout << endl << setw(26) << "Total " << " $ " << fixed << showpoint << setprecision(2) << setw(8) << total;
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