Solved

Implementation of overloading, where?

Posted on 2007-11-25
6
210 Views
Last Modified: 2013-12-14
Ok I have my code for implementing overloading in this program. Which part is exactly the implementation of overloading in this source? I am still very confused on overloading of the output operator.

Here is my code for persontype.h:

#include <string>

class person
{
public:
      std::string getNameLast();
      std::string getNameFirst();
      void setNameLast(std::string nameLast);
      void setNameFirst(std::string nameFirst);
      void introduceFirst();
      void introduceLast();
      friend std::ostream &operator<<(std::ostream &os, const person &p);
private:
      std::string itsNameLast;
      std::string itsNameFirst;
};

Here is my code for persontype.cpp:

#include <iostream>
#include <string>
#include "persontype.h"

using namespace std;

string person::getNameLast()
{
      return itsNameLast;
}

void person::setNameLast(string nameLast)
{
      itsNameLast = nameLast;
}

void person::introduceLast()
{
      cout << itsNameLast;
}

string person::getNameFirst()
{
      return itsNameFirst;
}

void person::setNameFirst(string nameFirst)
{
      itsNameFirst = nameFirst;
}

void person::introduceFirst()
{
      cout << itsNameFirst;
}

std::ostream &operator<<(std::ostream &os, const person &p)
{
    os << p.itsNameFirst << " " << p.itsNameLast;
      return os;
}

Here is my main.cpp code:

#include <iostream>
#include <string>
#include "persontype.h"

using namespace std;

int main()
{

      person PersonFull;
      PersonFull.setNameLast("Ann");
      PersonFull.setNameFirst("Heidi");

      cout << "The persons first and last name is: ";
      cout << PersonFull << endl;

      return 0;
}
0
Comment
Question by:jschmuff
  • 3
  • 2
6 Comments
 
LVL 86

Expert Comment

by:jkr
ID: 20347206
>>Which part is exactly the implementation of overloading in this source?

There is none, that is: not in your class.

std::ostream &operator<<(std::ostream &os, const person &p)
{
    os << p.itsNameFirst << " " << p.itsNameLast;
      return os;
}

overloads the global 'operator<<()' to provide an implementation that can be used for 'person', that's the overloading part.
0
 
LVL 86

Expert Comment

by:jkr
ID: 20347211
0
 
LVL 55

Expert Comment

by:Jaime Olivares
ID: 20347216
this code portions implements the stream output (<<) operator:

std::ostream &operator<<(std::ostream &os, const person &p)
{
    os << p.itsNameFirst << " " << p.itsNameLast;
      return os;
}

0
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 
LVL 55

Expert Comment

by:Jaime Olivares
ID: 20347232
try to remove this funcion from your class, then try to compile, you will see a difference that will help you to understand...
0
 

Author Comment

by:jschmuff
ID: 20347296
so in this code I have no implementation of overloading? That what is all that crap in there for then?
0
 
LVL 86

Accepted Solution

by:
jkr earned 250 total points
ID: 20347311
Well, you are overloading an operator in

std::ostream &operator<<(std::ostream &os, const person &p)
{
    os << p.itsNameFirst << " " << p.itsNameLast;
      return os;
}

not a class member. As already mentioned, take a look at http://en.wikipedia.org/wiki/Operator_overloading and http://en.wikipedia.org/wiki/Method_overloading
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Here is a helpful source code for C++ Builder programmers that allows you to manage and manipulate HTML content from C++ code, while also handling HTML events like onclick, onmouseover, ... Some objects defined and used in this source include: …
Basic understanding on "OO- Object Orientation" is needed for designing a logical solution to solve a problem. Basic OOAD is a prerequisite for a coder to ensure that they follow the basic design of OO. This would help developers to understand the b…
The viewer will learn how to synchronize PHP projects with a remote server in NetBeans IDE 8.0 for Windows.
The viewer will learn how to user default arguments when defining functions. This method of defining functions will be contrasted with the non-default-argument of defining functions.

920 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

15 Experts available now in Live!

Get 1:1 Help Now