employee.C

Go to the documentation of this file.

#include "employee.h"

#include <iostream>
#include <cstring>

using namespace std;

void allocate_name(char * & name, const char to[], const char which[]) {
   if (strlen(to) == 0) {
      name = NULL;
   }
   else {
      name = new char [strlen(to)+1];
      if (name != NULL) {
         strcpy(name, to);
      }
      else {
         cout << "Failed to allocate " << which << " name for "
              << to << "!" << endl;
      }
   }
   return;
}

Employee::Employee(const char first[] /* = "" */,
                   const char last[]  /* = "" */)
   : firstName(NULL), lastName(NULL)
{
   allocate_name(firstName, first, "first");
   allocate_name(lastName, last, "last");
}

Employee::Employee(const Employee & emp)
   : firstName(NULL), lastName(NULL)
{
   allocate_name(firstName, emp.firstName, "first");
   allocate_name(lastName, emp.lastName, "last");
}

Employee & Employee::operator = (const Employee & emp) {
   if (this != &emp)
   {
      set_first(emp.firstName);
      set_last(emp.lastName);
   }
   return *this;
}

void Employee::set_first(const char first[]) {
   delete [] firstName;
   allocate_name(firstName, first, "first");
   return;
}

void Employee::set_last(const char last[]) {
   delete [] lastName;
   allocate_name(lastName, last, "last");
   return;
}

Employee::~Employee() {
   delete [] firstName;
   delete [] lastName;
}

void Employee::print(ostream & out) const {
   if (firstName != NULL) {
      out << firstName << ' ';
   }
   if (lastName != NULL) {
      out << lastName;
   }
   return;
}

---