commis1.cpp

这是C＋＋编程经典的书上实例的源代码。 （英文名是《C＋＋ how to program》第3版）

// Fig. 10.1: commis1.cpp
// Member function definitions for class CommissionWorker
#include <iostream>

using std::cout;

#include "commis1.h"

// Constructor for class CommissionWorker
CommissionWorker::CommissionWorker( const char *first,
        const char *last, double s, double c, int q )
   : Employee( first, last )  // call base-class constructor
{
   setSalary( s );
   setCommission( c );
   setQuantity( q );
}

// Set CommissionWorker's weekly base salary
void CommissionWorker::setSalary( double s ) 
   { salary = s > 0 ? s : 0; }

// Set CommissionWorker's commission
void CommissionWorker::setCommission( double c )
   { commission = c > 0 ? c : 0; }

// Set CommissionWorker's quantity sold
void CommissionWorker::setQuantity( int q )
   { quantity = q > 0 ? q : 0; }

// Determine CommissionWorker's earnings
double CommissionWorker::earnings() const
   { return salary + commission * quantity; }

// Print the CommissionWorker's name 
void CommissionWorker::print() const
{
   cout << "\nCommission worker: ";
   Employee::print();
}



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