Project A3 20141 - OOP344

Introduction

In this assignment, you will construct an integer linked list, adapt it into a templated linked list, then create a bonus object editor.

Testing

Use the testing package linked here(Updated March 26 2014) to test your assignment. Please read the notes/comments in a3test.cpp.

Expectations

Test numbers are provided at the end of each class spec heading, as are file names.

Please read this note on code SANITY.

When you are finished the assignment, you will have created the following files:

• intlist.h
• intlist.cpp
• list.h

• Will update with part 3 soon.

Part 1: Integer Linked List

Build the classes IntList and IntListNode. Place the headers in intlist.h and the implementation in intlist.cpp. These classes form an integer linked list.

Class: IntListNode, Files: [intlist.h, intlist.cpp], Test Number: 0

Integer linked list node. Node is considered last in the list if its next pointer is NULL. Note the public and protected sections below. You may need to make IntList a friend of this class.

Recommended Members

• An integer member to hold the node's value.
• A pointer to the next node in the list.

Public Functions

Constructor

Accepts two arguments:

• Integer to initialize node's value. Defaults to a default constructed int.
• Pointer to next node in list. Defaults to NULL.

Copy Constructor

Initializes internal value as a copy of the source's internal value. Sets this object's next pointer to NULL.

Standard Assignment Operator

Assigns source's internal value to the current object's internal value. Sets this object's next pointer to NULL. Does not alter the object in the case of self-assignment. Returns a reference to the current object.

val

Val getter. Const function. Does not accept parameters. Returns internal value.

val

Val setter. Receives an int. Sets internal value to received int. Does not return anything.

next

Next getter. Const function. Does not accept parameters. Returns pointer to the next node.

Class: IntList, Files [intlist.h, intlist.cpp], Test Number: 0

Integer linked list. Uses IntListNode as a node class.

Recommended Members

• Pointer to head node in list
• Current size (number of nodes) of list

Public Functions

Constructor

Does not accept parameters. Initializes list to safe empty state.

size

Size getter. Const function. Does not receive parameters. Should return number of nodes in list.

head

Head getter. Const function. Returns pointer to head node in list.

push

Adds a new node to the end of the list. I'll say that again, END OF THE LIST. Receives an int parameter. The new node's value should be set to the received int.

pop

Destroys the last node in the list. I'll say that again, LAST NODE IN THE LIST. Does not receive any arguments. Does not return anything.

clear

Removes all nodes in the list. Has no effect if the list is empty. Does not accept parameters. Does not return anything.

Destructor

Should ensure that all memory allocated by the list has been deallocated. You are encouraged to use the functions available to you.

Standard Assignment Operator

Clears this list of all nodes. Then, refills list with the same number of nodes as in the source list. Value of each new node should equal the value of corresponding node in source list. Should not alter object in the case of self-assignment. Should return a reference to the current object.

Copy Constructor

Initializes object to safe state then copies source list into current list. Similar to assignment operator.

Part 2: Templated Linked List

NOTE: Finish part 1 before working on this part.

Build the templated linked list node class ListNode<T> and the templated linked list class List<T> in the file list.h.

These two classes are almost identical to IntListNode and IntList, except that they are templated.

In the specs below, note the sections that are marked Important. Those sections will have more than just a template parameter change from the int version of the list.

Class: ListNode<T>, Files: [list.h], Test Number: 1

Templated ListNode class. Similar to IntListNode but templated to hold any type.

The syntax for prototyping a templated class is:

 template <typename T> SomeClass;

Recommended Members

• Template type member to hold the value.
• Pointer to next node in list.

Public Functions

These functions are similar to their IntListNode counterparts.

Constructor

Accepts two arguments.

• Important const T reference to initialize node's value. Defaults to a default constructed T.
• Pointer to next node in the list. Defaults to NULL.

Copy Constructor

Initializes internal value as a copy of the source's internal value. Sets this object's next pointer to NULL.

Standard Assignment Operator

Assigns source's internal value to the current object's internal value. Sets this object's next pointer to NULL. Does not alter the object in the case of self-assignment. Returns a reference to the current object.

val

Val getter. Const function. Does not accept parameters. Returns internal value.

val

Val setter. Important receives a const T reference. Sets internal value to received reference. Does not return anything.

next

Next getter. Const function. Does not accept parameters. Returns pointer to next node.

Class: List<T>, Files [list.h], Test Number: 1

A templated linked list class. Similar to IntList. Uses ListNode<T> as a node class.

Recommended Members

• Pointer to head node in list
• Current size (number of nodes) of list

Public Functions

Constructor

Does not accept parameters. Initializes list to safe empty state.

size

Size getter. Const function. Does not receive parameters. Should return number of nodes in list.

head

Head getter. Const function. Returns pointer to head node in list.

push

Adds a new node to the end of the list. I'll say that again, END OF THE LIST. Important receives a const T reference. The new node's value should be set to the received reference.

pop

Destroys the last node in the list. I'll say that again, LAST NODE IN THE LIST. Does not receive any arguments. Does not return anything.

clear

Removes all nodes in the list. Has no effect if the list is empty. Does not accept parameters. Does not return anything.

Destructor

Should ensure that all memory allocated by the list has been deallocated. You are encouraged to use the functions available to you.

Standard Assignment Operator

Clears this list of all nodes. Then, refills list with the same number of nodes as in the source list. Value of each new node should equal the value of corresponding node in source list. Should not alter object in the case of self-assignment. Should return a reference to the current object.

Copy Constructor

Initializes object to safe state then copies source list into current list. Similar to assignment operator.

Submission

Please only submit ONCE YOUR CODE SUCCESSFULLY PASSES ALL TESTS! This includes the COMMON SENSE TEST which is the test that you perform yourself on your own code to ensure that it matches with what is required in the spec. Please see your instructor's specific instructions on how to submit.