// Pay program 
#include <iostream>
using namespace std;
int getInfo(int &hrsWorked, double &hrlyRate);
void calcPay(int hours, double rate, double &regPay, double &overPay);
void printInfo(double regPay,double overPay,double grossPay);
const regHours = 40;  //constant

int main()
{ double totalReg=0.00, totalOver=0.00;
  int hrsWorked;
  double hrlyRate;
  double regPay, overPay;
  while (getInfo(hrsWorked, hrlyRate))
  { calcPay(hrsWorked, hrlyRate,regPay, overPay); 
    printInfo(regPay,overPay,overPay+regPay);
	totalReg+=regPay;
	totalOver+=overPay;
  } // while 
  cout<<"TOTAL PAYROLL\n";
  printInfo(totalReg,totalOver,totalReg+totalOver);
  return 0;
} // main
	
int getInfo(int &hrs, double &rate)
// Reads hourly rate. If hourly rate is greater than 0, read hours
// worked and returns true, otherwise returns false to signal end of data.
{ cout<<"Enter hourly rate: ";
  cin>>rate;  // rate is already an address: NO & !!! 
  if (rate > 0.00)
  { cout<<"Enter hours worked: ";
	cin>>hrs;  // hrs is already an address: NO & !!!  
	return 1;
  } // person read in 
  else return 0; //rate of 0 signals end of data 
} // getInfo 
	
void overtime(int hours,double rate,double &regPay,double &overPay)
// pay for emp worked more than reg hours. 
{  int overHours;
   double overRate;
   regPay = rate * regHours;
   overHours = hours - regHours;
   overRate = rate * 1.5; // time and a half 
   overPay = overHours * overRate;
} // overtime 
	
void regular(int hours,double rate,double &regPay,double &overPay)
// pay for emp did not work overtime 
{ regPay = rate * hours;
  overPay = 0.00;
} // overtime 
	
void calcPay(int hours,double rate,double &regPay,double &overPay)
// call either overtime or regular to calc. Pay 
{  if (hours > regHours)
      overtime(hours, rate, regPay, overPay); 
   else
	  regular(hours, rate, regPay, overPay);
} // calcPay 

void printInfo(double regPay,double overPay,double grossPay)
{ cout.precision(2);     //print 2 decimal places
  cout.setf(ios::fixed);  
  cout<<"Regular pay=  "<<regPay<<"\n";
  cout<<"Overtime pay= "<<overPay<<"\n";
  cout<<"Gross pay=    "<<grossPay<<"\n";
} //printInfo