*Use original work!! or will downvote*INSTRUCTIONS: In this assignment, you will make your own smart pointer type. You will write the following class to develop a referenced counted smart pointer. You will also implement a few other member functions to resemble the functionality of an ordinary raw pointer. Basically, this is a problem of designing a single, non-trivial class and overloading a few pointer related operators. You may not use any of the STLs except for stdexcept, to do this, i.e., please dont try and use a shared_ptr to implement the class. You can start with this code, and you may add other member functions, if you want.C++ LANGUAGEOnly need smart_ptr.h file.*Use original work!! or will downvote* template class smart_ptr {public:smart_ptr();// Create a smart_ptr that is initialized to nullptr. The// reference count should be initialized to nullptr.explicit smart_ptr(T* raw_ptr);// Create a smart_ptr that is initialized to raw_ptr. The// reference count should be one. Make sure it points to// the same pointer as the raw_ptr.smart_ptr(const smart_ptr& rhs);// Copy construct a pointer from rhs. The reference count// should be incremented by one.smart_ptr(smart_ptr&& rhs);// Move construct a pointer from rhs.smart_ptr& operator=(const smart_ptr& rhs);// This assignment should make a shallow copy of the// right-hand side's pointer data. The reference count// should be incremented as appropriate.smart_ptr& operator=(smart_ptr&& rhs);// This move assignment should steal the right-hand side's// pointer data.bool clone();// If the smart_ptr is either nullptr or has a reference// count of one, this function will do nothing and return// false. Otherwise, the referred to object's reference// count will be decreased and a new deep copy of the// object will be created. This new copy will be the// object that this smart_ptr points and its reference// count will be one.int ref_count() const;// Returns the reference count of the pointed to data.T& operator* ( );// The dereference operator shall return a reference to// the referred object. Throws null_ptr_exception on// invalid access.T* operator->();// The arrow operator shall return the pointer ptr_.// Throws null_ptr_exception on invalid access.~smart_ptr(); // deallocate all dynamic memoryprivate:T* ptr_; // pointer to the referred objectint* ref_; // pointer to a reference count};

using namespace std; class NullPtrException : public exception{Â Â virtual const char* what() const…

Use original work!! or will downvote* INSTRUCTIONS: In this assignment, you will make your own smart pointer type. You will write the following class to develop a referenced counted smart pointer. You will also implement a few other member functions to resemble the functionality of an ordinary raw pointer. Basically, this is a problem of designing a single, non-trivial class and overloading a few pointer related operators. You may not use any of the STLs except for stdexcept, to do this, i.e., please dont try and use a shared_ptr to implement the class. You can start with this code, and you may add other member functions, if you want.

Use original work!! or will downvote* INSTRUCTIONS: In this assignment, you will make your own smart pointer type. You will write the following class to develop a referenced counted smart pointer. You will also implement a few other member functions to resemble the functionality of an ordinary raw pointer. Basically, this is a problem of designing a single, non-trivial class and overloading a few pointer related operators. You may not use any of the STLs except for stdexcept, to do this, i.e., please dont try and use a shared_ptr to implement the class. You can start with this code, and you may add other member functions, if you want.

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter10: Classes And Data Abstraction

Section: Chapter Questions

Problem 17PE

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Smart Pointer: Write a smart pointer class. A smart pointer is a data type, usually implemented with templates, that simulates a pointer while also providing automatic garbage collection. It automatically counts the number of references to a SmartPointer<?> object and frees the object of type T when the reference count hits zero.
Create a class for smart pointers. A smart pointer is a data type that simulates a pointer and offers automated garbage collection. It is often implemented using templates. When the number of references to a SmartPointerT*> object drops to zero, the object of type T is immediately released.
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