Overloading New And Delete Operator In C++ | Overloading New And Delete Operator In C++ Example | Overloading New And Delete Operator In C++ In Hindi

 

Overloading New And Delete Operator In C++

The new and delete operators can also be overloaded like other operators in C++. New and Delete operators can be overloaded globally or they can be overloaded for specific classes.

Syntax for overloading the new operator :

void* operator new(size_t size);

Syntax for overloading the delete operator :

void operator delete(void*);

Fig:Overloading New And Delete Operator In C++

Program:

#include<iostream>

#include<stdlib.h>

class student

{

string name;

int age;

public:

student()

{

cout<< "Constructor is called\n" ;

}

student(string name, int age)

{

          this->name = name;

          this->age = age;

          }

          void display()

          {

                   cout<< "Name:" << name << endl;

                   cout<< "Age:" << age << endl;

          }

          void * operator new(size_t size)

          {

                   cout<< "Overloading new operator with size: " << size << endl;

                   void * p = ::new student();

                   return p;

          }

          void operator delete(void * p)

          {

                   cout<< "Overloading delete operator " << endl;

                   free(p);

          }

};

int main()

{

          student * p = new student("Pramod", 22);

          p->display();

          delete p;

}

Output:

Overloading new operator  with size:16

Constructor is called

Name:Pramod

Age:21

Overloading delete operator