employee.cpp

是有关C++编程原理教程的例子程序,全,应该对大家有所帮助

// Fig. 10.13: Employee.cpp
// Member-function definitions for class Employee.
#include <iostream>
using std::cout;
using std::endl;

#include <cstring> // strlen and strncpy prototypes
using std::strlen;
using std::strncpy;

#include "Employee.h" // Employee class definition
#include "Date.h" // Date class definition

// constructor uses member initializer list to pass initializer 
// values to constructors of member objects birthDate and hireDate 
// [Note: This invokes the so-called "default copy constructor" which the 
// C++ compiler provides implicitly.]   
Employee::Employee( const char * const first, const char * const last,
   const Date &dateOfBirth, const Date &dateOfHire )
   : birthDate( dateOfBirth ), // initialize birthDate
     hireDate( dateOfHire ) // initialize hireDate
{
   // copy first into firstName and be sure that it fits
   int length = strlen( first );
   length = ( length < 25 ? length : 24 );
   strncpy( firstName, first, length );
   firstName[ length ] = '\0';

   // copy last into lastName and be sure that it fits
   length = strlen( last );
   length = ( length < 25 ? length : 24 );
   strncpy( lastName, last, length );
   lastName[ length ] = '\0';

   // output Employee object to show when constructor is called
   cout << "Employee object constructor: " 
      << firstName << ' ' << lastName << endl;
} // end Employee constructor

// print Employee object
void Employee::print() const
{
   cout << lastName << ", " << firstName << "  Hired: ";
   hireDate.print();
   cout << "  Birthday: ";
   birthDate.print();
   cout << endl;
} // end function print

// output Employee object to show when its destructor is called
Employee::~Employee()
{ 
   cout << "Employee object destructor: " 
      << lastName << ", " << firstName << endl;
} // end ~Employee destructor

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