In my First class using C++ need help with a lab

[cbars]

So I wrote this code for a lab and I'm lost with adding this function to it. Here are the directions that I'm following for this.

Modify Lab 2 (which is the code I posted below) by adding a function to the program that
calculates federal income tax withholding based on the
number of dependents and gross pay.
• Deduct the withholding amount from gross pay, and modify
the output to include the resulting net pay.
– Prompt the user for the number of dependents
– Determine the federal tax "withholding" amount based
on gross pay and the number of dependents


The withholding function will determine the income tax
withholding amount as a function of gross pay and the
number of dependents input by the user as follows:
0 dependents - withhold 28%
1 dependent - withhold 20%
2 dependents - withhold 18%
greater than 2 dependents - withhold 15%
• Modify the output to now include the amount withheld and
the net pay.

I need the output to look like this:
Total Hours Worked = x
Hourly pay rate = $xx.xx
Base pay = $xx.xx
Overtime hours at time and a half = x
Overtime pay at time and a half = $xx.xx
Overtime hours at double time = x
Overtime pay at double time = $xx.xx
Gross pay = $xx.xx
Taxes withheld = $xx.xx
Net pay = $xx.xx

#include <iostream>

using namespace std;

int main()

{
int hours_worked, timeHalf_hours = 0, doubleTime_hours = 0;
double gross_pay, pay_rate, base_pay, timeHalf_pay = 0, doubleTime_pay = 0;

cout << "Enter the hourly rate of pay: $";
cin >> pay_rate;
cout << "Enter the number of hours worked,\n"
<<"rounded to a whole number of hours: ";
cin >> hours_worked;

if (hours_worked <= 40)
{
base_pay = pay_rate * hours_worked;

}
if (hours_worked > 41 && hours_worked <= 50)
{
base_pay = pay_rate * 40;
timeHalf_hours = hours_worked - 40;
timeHalf_pay = 1.5 * pay_rate * (hours_worked - 40);
gross_pay = timeHalf_pay + base_pay;
}
else
{
base_pay = pay_rate * 40;
timeHalf_hours = hours_worked - 40 - (hours_worked - 50);
timeHalf_pay = 1.5 * pay_rate * (hours_worked - 40);
doubleTime_hours = hours_worked - 50;
doubleTime_pay = 2 * pay_rate * (hours_worked - 50);
gross_pay = doubleTime_pay + base_pay;
}


cout.setf (ios:: fixed);
cout.setf(ios::showpoint);
cout.precision(2);

cout << " Hours worked = " << hours_worked << endl;
cout << "Hourly pay rate = $" << pay_rate << endl;
cout << "Base pay = $" << base_pay << endl;
cout << "timeHalf hours = " << timeHalf_hours << " hours"<< endl;
cout << "timeHalf pay = $" << timeHalf_pay << endl;
cout << "doubletime hours = " << doubleTime_hours << " hours"<< endl;
cout << " doubleTime pay = $" << doubleTime_pay<< endl;
cout << " Gross pay = $" << gross_pay << endl;



return 0;
}

[LB]

Please edit your post and make sure your code is actually [code]between code tags[/code] so that it has line numbers and syntax highlighting.

What exactly is confusing you? You seem to have been OK writing the rest of the program.

[cbars]

I just don't understand how to create the function and where to place it.

[LB]

Try reading the tutorial on functions:
http://www.cplusplus.com/doc/tutorial/functions/

At the very least, write what you can, and when you can proceed no further ask for help.

[cbars]

I'm not sure why I'm struggling with it, it seems fairly simple but even after I read that I'm still confused. I understand declare, define, then put it in my output. So I guess declaring it would be something along the lines of: int withholding (dependants) ?

[LB]

I don't know much about tax calculation; I can only help you with syntax here.

Remember: your function parameters need types too, as they are effectively variables local to the function.