pr08002.cpp

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////////////////////////////////////////
// File Name: pr08002.cpp
////////////////////////////////////////
#include <iostream>
#include <iomanip>

// Define constants.
const float overtime = 1.5;
const float taxrate = 0.15;
const int wkweek = 40;

// Define inline functions.
inline int reg(int h)
{
    return h < wkweek ? h : wkweek;
}

inline int otime(int h)
{
    return h < wkweek ? 0 : h - wkweek;
}

inline float otimepay(int h,float r)
{
    return r * otime(h) * overtime;
}

inline float regpay(int h,float r)
{
    return r * reg(h);
}

inline float grosspay(int h,float r)
{
    return otimepay(h,r) + regpay(h,r);
}

inline float wholding(int h,float r)
{
    return grosspay(h,r) * taxrate;
}

inline float netpay(int h,float r)
{
    return grosspay(h,r) - wholding(h,r);
}

// Function prototype.
void setformat();

////////////////////////////////////////
// The main() function.
////////////////////////////////////////
int main()
{
    std::cout << "Enter hours (xx) rate (x.xx): ";
    int hours;
    float rate;
    std::cin >> hours >> rate;

    std::cout << "Regular:    ";
    setformat();
    std::cout << regpay(hours, rate)   << std::endl;

    std::cout << "Overtime:   ";
    setformat();
    std::cout << otimepay(hours, rate) << std::endl;

    std::cout << "Gross:      ";
    setformat();
    std::cout << grosspay(hours, rate) << std::endl;

    std::cout << "Withholding: ";
    setformat();
    std::cout << wholding(hours, rate) << std::endl;

    std::cout << "Net Pay:    ";
    setformat();
    std::cout << netpay(hours, rate)   << std::endl;

    return 0;
}

void setformat()
{
    std::cout << std::setw(10)
              << std::setiosflags(std::ios::fixed) 
              << std::setiosflags(std::ios::right)
              << std::setprecision(2);
}