Purpose: This assignment will help you get practice with:
• Singly Linked Lists
• C++ Rule of Big Tree (destructor. copy constructor. copy assignment operator)
• C++ operator overloading
• C++ pointers and reference variables
TASK
In many programming languages, the String class is typically implemented as an array of
characters. Some other languages, such as Haskell, Erlang, and a few other functional
programming languages, however, implement strings as Singly Linked List (SLL) of characters.
Compared with the array implementations, the SLL ones are very easy for pattern matching
because of the recursive structure of linked list. Let’s not worry about recursion in this
assignment.
In this assignment, you will implement a SLLString class using SLL. Your SLLString class will
include the following members:
• SLLString(); //Default constructor
• SLLString(const string& other); //copy constructor taking a C++ string as parameter.
• ~SLLString(); // destructor
• SLLString(const SLLString& other); //copy constructor taking another SLLString
• SLLString& operator=(const SLLString& other); // assignment constructor
• int length(); // get length of this string
• SLLString& operator+= (const SLLString& other); // concatenation
• char& operator[](const int n); //get character at index n
• int findSubstring(const SLLString& substring); // find the index of the first occurrence of
substring in the current string. Returns -1 if not found
• void erase(char c); //erase all occurrences of character c from the current string
• support cout << operator
• Node* head; // the head pointer to the SLL
Each Node object should contain a char data type and a next pointer to Node.
