/******************************************************

** Name: 

** Filename: grosspay.cpp

** Project #: Deitel & Deitel 2.19

** Project Description: Write a program that will determine the gross
	pay for each of several employees.

** Output:
	Salary in dollars


** Input:
	Hours worked
	Hourly rate of worker

** Algorithm:
	Enter hours worked:
	Enter hourly rate of worker:
	Hours <= 40 then salary = hours worked * hourly rate
    Hours > 40 then calculate hours over 40 
	Hourly half pay = ( hours over * hourly rate ) * 1/2
	Salary for worker with over 40 hours = 
	                  (hours * hourly rate) + half pay;
	Print Salary for each worker
	Enter -1 to end program

******************************************************/

// Include files
#include <iostream>  // used for cin, cout
#include <conio.h>
using namespace std;
#include <iomanip>

// Global Type Declarations

// Function Prototypes
void instruct (void);
void pause ();


//Global Variables - should not be used without good reason.

int main ()
{
	 // Declaration section
	  double salary,        // salary of worker
		     hours,         // hours worked
	         hrate,         // hourly rate
		     ots,           // hourly half pay
		     hoursover;     // hours over 40


	 // Executable section
	 instruct ();
   cout << "Enter hours worked (-1 to end): "
	    << setiosflags ( ios::fixed | ios::showpoint );    
   cin >> hours; 


   while ( hours != -1 ) {
   cout << "Enter hourly rate of the worker ($00.00): ";
   cin >> hrate; 

   if ( hours <= 40 )
	   salary = hours * hrate;
       hoursover = hours - 40;

   ots = ( hoursover * hrate ) * .5;

   if ( hours > 40 )
	   salary = ( hours * hrate ) + ots;


   cout << "Salary is $" << setprecision ( 2 ) << salary
	    << "\n\nEnter hours worked (-1 to end): ";
   cin >> hours;

   }
    
	pause ();
	return 0;
	 
}

void instruct (void)
{
	  // Declaration section

	  // Executable section
 cout << "The following program will determine the gross pay of\n"
	  << "several employees including overtime calculations.\n" 
	  << "Input the hours worked and the hourly rate of each\n"
	  << "employee.\n"<< endl;
}

void pause ()
{
    // Declaration section

    // Executable section
    cout << "\nPress any key to continue...";
    getch();
    cout << "\r";
    cout << "                            ";
    cout << "\r";
}




/*
Program Output

Enter hours worked (-1 to end): 40
Enter hourly rate of the worker ($00.00): 20.00
Salary is $800.00

Enter hours worked (-1 to end): 45
Enter hourly rate of the worker ($00.00): 20.00
Salary is $950.00

Enter hours worked (-1 to end): -1

Press any key to continue...


*/