C++ The List class represents a linked list of dynamically allocated elements. The list has only one member variable head which is a pointer that leads to the first element. See the following code for the destructor to List. ~ List () {      for (int i = 0; i

C++ Programming: From Problem Analysis to Program Design
8th Edition
ISBN:9781337102087
Author:D. S. Malik
Publisher:D. S. Malik
Chapter17: Linked Lists
Section: Chapter Questions
Problem 13PE
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C++

The List class represents a linked list of dynamically allocated elements. The list has only one member variable head which is a pointer that leads to the first element. See the following code for the destructor to List.

~ List () {

     for (int i = 0; i <size (); i ++)

      {

            pop_back ();

         }

}

What problems does the destructor have?

Select one or more options:

1. There are no parameters for the destructor.

2. The return value from pop_back (if any) is nerver handled.

3. The destructor will create a stack overflow.

4. The destructor will create dangling pointers.

5.The destructor will create memory leaks.

6.The destructor will create undefined behavior (equivalent to zero pointer exception).

7.The condition must be: i <size () - 1

8. There is at least one problem with the destructor, but none of the above.

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