Modify Program to include the assignment statement b = a, and then run the modif

Question

Modify Program to include the assignment statement b = a, and then run the modified program to assess any error messages that occur. #include
#include
using namespace std;
// class declaration section
class Book
{
private:
char *title; //a pointer to a book title
public:
Book(char * = ‘’); //constructor
void showtitle(void); //display the title
};
// class implementation section
Book::Book(char*strng)
{
title = new char[strlen(strng) + 1]; //allocate memory
strcpy(title,strng); //store the string
}
void Book::showtitle(void)
{ cout << title << endl;
return
}
int main()
{
Book book1(“Windows Primer”); // create 1st title
Book book2(“History of Western Civilization”); // 2nd title

book1.showtitle(); //display book1’s title
book2.showtitle(); //display book2’s title

return 0;
}

Explanation / Answer

Answer:

The implementation after the include of assignment statement b=a on modification of the program is as shown below :

#include<iostream>
#include<cstring>
using namespace std;

class Book
{
private:
char *title;

public:
Book(char * = '');
void showtitle(void);
};

Book::Book(char *strng)
{
title = new char[strlen(strng) + 1];
strcpy(title,strng); //store the string
}
void Book:: showtitle(void)
{
cout << title << endl;
return;
}
int main()
{
  
char *a="A Brief History of Western Civilization";
char *b=a; //assignment statement implementation by modification in program
Book book1("Windows Primer");
Book book2(b);
book1.showtitle();
book2.showtitle();
return 0;
}

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