I need c++ code for the given problem with separate code for HasA , IsA , AsA

Program correctness for HasA
Program correctness for IsA
Program correctness for AsA

Problem

Consider an ADT FrontList, which restricts insertions, removals, and retrievals to the first item in the list. These operations can be defined as

bool insert(const ItemType& newEntry);

bool remove();

Itemtype retrieve() const;

Define an abstract class (interface) for the ADT FrontList, and then implement the class FrontList in the following three different ways:

Store the list's entries in an instance of LinkedList

[Hint: This is similar to the class SortedListHasA. Please see the definition,

implementation and its tester of SortedListHasA on D2L.]

Derive the class FrontList from LinkedList using public inheritance.

[Hint: This is similar to the class SortedListIsA. Please see the definition,

implementation and its tester of SortedListIsA on D2L.]

Derive the class FrontList from LinkedList using private inheritance.

[Hint: This is similar to the class SortedListAsA. Please see the definition, implementation and its tester of SortedListAsA on D2L.]

Other requirements

Add default and copy constructors following LinkedList class.

Add a destructor LinkedList class.

Disable the following member functions when using public inheritance because they may cause problems.

bool insert(int newPosition, const ItemType& newEntry);

bool remove(int position);

void replace(int position, const ItemType& newEntry)

throw(PrecondViolatedExcep);

It is noticed thatifremove(position) is disabled in the case of public inheritance, it would cause a problem for clear() to function incorrectly. So you also need to override clear() function so that it can function correctly.

code a tester program (driver) for each of the three different classes for the ADT FrontList by following the programs that test SortedList class on D2L.