Using C++

Using an appropriate definition of ListNode, design a simple linked list class called StringList with the following member functions:

void add (std::string);

int positionOf (std::string);

bool setNodeVal(int, std::string);

std::vector getAsVector();

a default constructor

a copy constructor

a destructor

The add() function adds a new node containing the value of the parameter to the end of the list. The positionOf() function returns the (zero-based) position in the list for the first occurrence of the parameter in the list, or -1 if that value is not in the list. In the setNodeVal() function, the first parameter represents a (zero-based) position in the list. The setNodeVal() function sets the value of the node at that position to the value of the string parameter. If the position parameter is >= the number of nodes in the list, the operation cannot be carried out and setNodeVal() should return false, otherwise it should be successful and return true. The getAsVector() function returns a vector with the same size, values and order as the StringList. The default constructor should initialize a new empty StringList object. The copy constructor should create a completely separate duplicate of a StringList object (a deep copy). The destructor should delete any memory that was dynamically allocated by the StringList object.

Files must be called: StringList.hpp and StringList.cpp