COMP 2401 -- Assignment #4

You will write a program in C, in the Ubuntu Linux environment, to manage a movie database.In this assignment, you will:• define the data types and structures required to represent a movie collection as a doubly linked list• write code to interact with the user for the purpose of managing movie data• implement functions to manipulate the doubly linked list• create a set of input files to test a programLearning Objectives• get familiar with more complex dynamic memory operations by managing a doubly linked list• practice a wider variety of user I/O interactions using standard library functions• use redirection of standard input to test a programInstructions1. Data typesDefine the data types required for the movie database:• MovieType represents one movie; it includes the movie title, the year it was made, and the genre• MovieNodeType corresponds to a node in the doubly linked list of movies, implemented as we saw in the “Advanced Linked Lists” section of the course notes• your main function must define the movie list as a pointer to the head of the doubly linked listo there must be only one instance of the movie list in the entire program; do not make copies!o this is not a global variableNote:• your program must use the definitions in the header file found here: a4Defs.h2. Movie management user interface (UI)Write a main and a main menu function to interact with the user and provide these four options (with 0 to exit):• add movieso getMovieData prompts the user for the number of movies to be entered, then prompts for the movie data• delete a movieo the user enters the title of a movie to be removed from the list• list all movieso a list of all movies is printed to the standard output• list movies by genreo the user enters the genre of movies to be listedo a list of all movies of that genre is printed to the standard outputNote:• you can find some helpful sample code for user I/O here: testUtil.cCOMP 2401 -- Assignment #4 Fall 2013 2/43. List management functionsImplement the following list management functions:• addToMovieListo adds a given movie to the movie list, alphabetically by title, then chronologically by year if titles are identical• deleteMovieo removes the given movie from the movie list• printMovieDatao prints out a list of all movies to the standard output• printMoviesByGenreo prints out a list of all movies of the given genre to the standard output you must create a new temporary list containing movies of only that genre – do not copy the movie data! you must reuse the addToMovieList and printMovieData functionsNotes:• the print functions must display all the data for each movie• remember to manage your memory! do not leave any memory leaks4. Instrumentation functionDefine, as a global variable, a pointer to an output file that will contain the contents of the movie list• the file can be opened at the beginning of the main function and closed at the end of the programWrite a dumpList function that prints to the output file the detailed contents of the movie list, including:• the value of the head, as an address• for each node:o the value of the node, as an addresso the address of the data, as well as its contentso the value of the previous node, as an addresso the value of the next node, as an addressNotes:• your program must call dumpList at the beginning and end of these functions: getMovieData, addMovieToList, deleteMovie• your output must be formatted as in Figure 1• you can reuse the convertToBytes and dumpBytes functions from previous assignments5. Test input filesDesign a suite of test cases that thoroughly exercise your program’s functionality and possible error conditions.In your readme file, list and number all the cases that must be tested. At minimum, these will include, for each feature of the program, one test case for every normal case and every error case; for the add movies feature, for example, the following must be tested:o adding a movie to an empty listo adding a movie to the beginning of the listo adding a movie to the end of the list... and many more ...Create a set of test input files; each input file:• corresponds to one test case• contains the standard input data to be redirected into your program for that test caseCOMP 2401 -- Assignment #4 Fall 2013 3/4Figure 1 – Sample output of instrumentation functionConstraints• Design:o you must separate your code into modular, reusable functionso never use global variables, unless otherwise instructedo compound data types must be passed by reference, not by valueo you must manage your memory! use valgrind to find memory leaks• Reuse:o you must include the given header file in your program and use its function prototypes exactly as defined• Implementation:o your program must perform all basic error checkingo it must be thoroughly commented• Executiono programs that do not compile, do not execute, or violate any constraint are subject to severe deductions• Testingo submissions that do not include a list of test cases and a suite of test input files are subject to severe deductionsCOMP 2401 -- Assignment #4 Fall 2013 4/4SubmissionYou will submit in cuLearn, before the due date and time, one tar file that includes all the following:• all source and header files• a Makefile• a readme file, which must include:o a preamble (program author(s), purpose, list of source/header/data files)o exact compilation command(s)o launching and operating instructionso a list of test cases that test your program• a set of test input filesGrading• Marking breakdown:ComponentMarksdata types10movie management UI16list management functions62instrumentation function12• Assignment grade: Your grade will be computed based on the completeness of your implementation, plus bonus marks, minus deductions.• Deductions: 100 marks if:o any files are missing from your submission, or if they are corrupt or in the wrong format 50 marks if:o the Makefile is missingo the code does not compile using gcc in the Ubuntu Linux shell environmento unauthorized changes have been made to the header and/or source files provided for youo code cannot be tested because it doesn’t run 25 marks if:o your submission consists of anything other than exactly one tar fileo your program is not broken down into multiple reusable, modular functionso your code is not correctly separated into header and source fileso your program uses global variables (unless otherwise explicitly permitted)o the readme file is missing or incomplete 10 marks for missing comments or other bad style (non-standard indentation, improper identifier names, etc)• Bonus marks: Up to 5 extra marks are available for fun and creative additional features
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