// union example 2

#include <iostream>
#include <iomanip>
using namespace std;

struct HourlyPay
{
    unsigned short hoursWorked;
    float hourlyWage;
};

union Pay
{
    HourlyPay hourlyPay;
    float annualSalary;
};

enum EmployeeType {Hourly, Salary};

struct Employee
{
    string name;
    EmployeeType type;
    Pay pay;
};

float weeklyPay(const Employee&);

int main()
{
    Employee John;
    John.name = "John";
    John.type = Hourly;
    John.pay.hourlyPay.hoursWorked = 30;
    John.pay.hourlyPay.hourlyWage = 15.75;

    Employee Mary;
    Mary.name = "Mary";
    Mary.type = Salary;
    Mary.pay.annualSalary = 75000;

    cout << setprecision(2) << fixed;
    cout << '$' << weeklyPay(John) << endl;
    cout << '$' << weeklyPay(Mary) << endl;
}

float weeklyPay(const Employee& employee)
{
    if (employee.type == Hourly)
        return employee.pay.hourlyPay.hoursWorked * employee.pay.hourlyPay.hourlyWage;
    else return employee.pay.annualSalary / 52;
}

******  OUTPUT  ****** $472.50 $1442.31