Need help with a C++ commenting question:Indicate where the different constructors, assignment operator= and desctructor will run with a comment under the relevant line of code. Start in main and use the following tags to indicate the function that will run:Default constructor <object name>String constructor <object name>Copy constructor <object name>Assignment operatorDestructor <object name>Substitute the variable name for the object constructed or destructed. Use a comma to separate if multiple functions are run on a line. Code to comment on:#include <iostream> 2using namespace std; 3 4class Student { 5public: 6friend Student OutputDuplicate (Student obj); // friend function 7 8Student (); // Default constructor 9 10Student (string n); // String constructor 11 12Student (const Student & obj); // Copy constructor 13 14Student& operator= (const Student & right); // Assignment operator 15 16~Student() ; // Destructor 17 18private: 19string name; 20 21}; 22 23// Default constructor 24Student::Student() : name("no name") 25{ 26// Intentionally left blank 27} 28 29// String constructor 30Student::Student(string n) : name(n) 31{ 32// Intentionally left blank 33} 34 35// Copy constructor 36Student::Student(const Student & obj) : name(obj.name) 37{ 38// Intentionally left blank 39} 40 41// Assignment operator 42Student& Student::operator= (const Student & right) 43{ 44name=right.name; 45return (*this); 46} 47 48// Destructor 49Student::~Student() 50{ 51// Intentionally left blank 52} 53 54////////////////////////////////////////////////////////////////////////////// 55// MARK UP FROM HERE DOWN 56////////////////////////////////////////////////////////////////////////////// 57 58// friend function 59Student OutputDuplicate (Student obj) 60{ 61Student tmp("Jack"); 62 63cout <<"Creating a new student Jame smith\n"; 64Student * anotherObj = new Student ("Jane Smith"); 65 66*anotherObj = obj; 67return tmp; 68} 69 70int main() 71{ 72Student a, b ("John Smith"); 73 74cout <<"calling OutputDuplicate\n\n"; 75 76a = OutputDuplicate (b); 77 78cout <<"\nExiting\n"; 79}

Answered: Substitute the variable name for the…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Need help with a C++ commenting question:

Indicate where the different constructors, assignment operator= and desctructor will run with a comment under the relevant line of code.

Start in main and use the following tags to indicate the function that will run:

Default constructor <object name>
String constructor <object name>
Copy constructor <object name>
Assignment operator
Destructor <object name>

Substitute the variable name for the object constructed or destructed. Use a comma to separate if multiple functions are run on a line.

Code to comment on:

#include <iostream>
2	using namespace std;
3
4	class Student {
5	public:
6	friend Student OutputDuplicate (Student obj); // friend function
7
8	Student (); // Default constructor
9
10	Student (string n); // String constructor
11
12	Student (const Student & obj); // Copy constructor
13
14	Student& operator= (const Student & right); // Assignment operator
15
16	~Student() ; // Destructor
17
18	private:
19	string name;
20
21	};
22
23	// Default constructor
24	Student::Student() : name("no name")
25	{
26	// Intentionally left blank
27	}
28
29	// String constructor
30	Student::Student(string n) : name(n)
31	{
32	// Intentionally left blank
33	}
34
35	// Copy constructor
36	Student::Student(const Student & obj) : name(obj.name)
37	{
38	// Intentionally left blank
39	}
40
41	// Assignment operator
42	Student& Student::operator= (const Student & right)
43	{
44	name=right.name;
45	return (*this);
46	}
47
48	// Destructor
49	Student::~Student()
50	{
51	// Intentionally left blank
52	}
53
54	//////////////////////////////////////////////////////////////////////////////
55	// MARK UP FROM HERE DOWN
56	//////////////////////////////////////////////////////////////////////////////
57
58	// friend function
59	Student OutputDuplicate (Student obj)
60	{
61	Student tmp("Jack");
62
63	cout <<"Creating a new student Jame smith\n";
64	Student * anotherObj = new Student ("Jane Smith");
65
66	*anotherObj = obj;
67	return tmp;
68	}
69
70	int main()
71	{
72	Student a, b ("John Smith");
73
74	cout <<"calling OutputDuplicate\n\n";
75
76	a = OutputDuplicate (b);
77
78	cout <<"\nExiting\n";
79	}

Expert Solution

Introduction:

The given is a c++ code which consist of below features:

1. A class with name Student

2. A default consutructor

3. A String constructor

4. An assignment operator implementation

The requirement is to find the statements in the main function that calls constructor, destructor and other operators.

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