Memory Management Operator

Memory Management Operator in C++ language

There are two types of memory management operators in C++:

1. new operator: The new operator in C++ is used for dynamic storage allocation in computer memory. The operator can be used to create the object of any type.

The general syntax of the new operator in C++ is as follow:

datatype pointer_name = new datatype; Here, new is a keyword and the pointer variable is a variable of type datatype.

For example: int *pointer_variable = new int;

2.delete operator: The delete operator in C++ is used for releasing memory space when the object is no longer needed. Once a new operator is used, it is efficient to use the corresponding delete operator for release of memory. 

The general syntax of delete operator in C++ is as follow:

delete pointer_variable; Here delete is a keyword and the pointer_variable is a pointer that points to the objects that are already created with the help of a new operator.

Write a C++ program which demonstrates the use of new and delete operators.

#include<iostream>

using namespace std;

int main()

{

int *ptr = new int; 

*ptr = 10;

cout<<"The output is : ptr = ";

cout<<*ptr;

delete ptr;

return 0;

}

The program output is tested on www.jdoodle.com

Output:

The output is : ptr = 10

Thanks 

Mukesh Rajput