Question

How do i write a destructor for this class?

#ifndef NODE_H
#define NODE_H
#include <iostream>
using namespace std;

class Node{
public:
// Constructor
// Preconditions: None
// Postconditions: None
Node();

// Destructor
// Preconditions: None
// Postconditions: Frees dynamically allocated memory
~Node();

// Overloaded Constructor
// Preconditions: None
// Postconditions: Initializes member variable with given argument
Node(bool value);

// ReplaceValue - Replaces m_value with opposite (if true then false or if false then true)
// Preconditions: None
// Postconditions: m_value negated
void ReplaceValue();

// SetNext() - Sets m_next
// Preconditions: None
// Postconditions: m_next is set
void SetNext(Node* next);

// GetNext() - returns m_next
// Preconditions: None
// Postconditions: returns m_next
Node* GetNext();

// GetValue() - returns m_value
// Preconditions: None
// Postconditions: returns m_value
bool GetValue();

private:
Node* m_next; // Next Node in the list
bool m_value; // Shows value of node (1 or 0)
};

#endif

Answer 1

//Destructor definition
Node::~Node() {
//The statement to print a statement
cout << "Object is being deleted" << endl;
//delete the Node pointer using delete statement
delete m_next;
}

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Complete Program

//#ifndef NODE_H
//#define NODE_H
#include <iostream>
using namespace std;

class Node{
public:
// Constructor
// Preconditions: None
// Postconditions: None
Node();

// Destructor
// Preconditions: None
// Postconditions: Frees dynamically allocated memory
~Node();

// Overloaded Constructor
// Preconditions: None
// Postconditions: Initializes member variable with given argument
Node(bool value);

// ReplaceValue - Replaces m_value with opposite (if true then false or if false then true)
// Preconditions: None
// Postconditions: m_value negated
void ReplaceValue();

// SetNext() - Sets m_next
// Preconditions: None
// Postconditions: m_next is set
void SetNext(Node* next);

// GetNext() - returns m_next
// Preconditions: None
// Postconditions: returns m_next
Node* GetNext();

// GetValue() - returns m_value
// Preconditions: None
// Postconditions: returns m_value
bool GetValue();

private:
Node* m_next; // Next Node in the list
bool m_value; // Shows value of node (1 or 0)
};

//Destructor definition
Node::~Node() {
//The statement to print a statement
cout << "Object is being deleted" << endl;
//delete the Node pointer using delete statement
delete m_next;
}

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