Chapter 10, Problem 30RQE

Program Plan Intro

The unique_ptr class:

A “unique_ptr” is a smart pointer which wraps the normal pointer into an owned object is referred as raw pointer. This object will manage or taking ownership of another object using pointer.

• It has an ability to take responsible for deleting the pointed object when it goes out of scope.
• It owns their pointer unique.
• It is parameterized by the type of an object it points to.

Syntax:

Consider the following syntax to create a “unique_ptr” pointer:

unique_ptr<data_type> pointer_variable(new data_type);

Example:

unique_ptr<int> wrd(new int);

In above statement, the variable “wrd” is declared as “unique_ptr” for int type.