CMPS 223 - Homework 1

Homework 1 - Structures and Pointers

Due: Wednesday, April 6, 2011 at 5:00pm

Coding Conventions

The following coding conventions should be used for all assignments.

Have a comment section at the top of your files with your name, the assignment number and the date the code was written. You may add more to the top comment if you wish.
Put a blank line between each function body (including between main and user defined functions), between the header section (#include and using namespace) and the function prototype section, and between the function prototypes and the main function.
Indent all blocks such as if statements or loops with at least two spaces. For example, your if statements should appear as:
```
if(a == b)
{
  a = a * 2;
  b = b - 1;
}
```
NOT as:
```
if(a == b)
{
a = a * 2;
b = b - 1;
}
```
If you use vim on Sleipnir, it will indent such blocks automatically for you.

Assignment

The purpose of this assignment is to create a structure called StudentRecord to track and calculate student grades in a fictitious course. You will also be using a pointer to dynamically allocate and delete a StudentRecord object. Any assignment that does not use new/delete will have points deducted.

The StudentRecord structure must have the following pieces of data:

A C-style string for the student name (you may choose the length for this string)
A 10 character C-style string for the student ID
An interger array with a size of 5 to store the exam scores
A double for the overall exam average

You will have the following two function to manipulate StudentRecord objects. You may add additional functions if you wish, but you must have these two functions to get full points:

StudentRecord *createStudent() - This function will allocate a single StudentRecord object and then prompt the user to enter the name, ID and exam scores. After reading in these variables, the function will compute the overall exam average and return the address (a pointer) for the allocated StudentRecord object. If allocation fails, return NULL.
void printStudent(StudentRecord *) - This function will take a StudentRecord pointer and print out all of its fields. The overall exam average should be printed with two decimal places of precision.

Your main function will have the following loop:

do
  call createStudent and store the returned address in a StudentRecord pointer
  if the pointer is NULL
    print an error message
    break out of the loop
  end-if
  call printStudent with the StudentRecord pointer
  deallocate the StudentRecord pointer
  prompt the user "Do you wish to continue?"
  read in their response
  convert the response to all lowercase letters
while the user responds "yes" or "y"

Email your source code to me by the due date.