CSE 333 24su Exercise 3

Due: Friday, June 28th, 2024 by 10:00 am, No late exercises accepted.
Goals: Write a program that uses structs, typedef, and dynamic memory allocation (malloc/free).

Description: Your job is to write a C program that does the following:

• uses typedef to define a new structured type called Point3d, which contains uint16_t fields for x, y, and z coordinates.
• defines a function called AllocatePoint3d that accepts three uint16_t values as arguments, mallocs space for a Point3d, assigns those three arguments to the x, y, and z fields, and returns (a pointer to) the malloc'ed Point3d.
• has a main() that "tests" AllocatePoint3d. For the purposes of this exercise, it is enough for you to write code that simply allocates a struct by calling AllocatePoint3d and verifies that the struct members contain the correct values. Your "test" should print an appropriate message if something is wrong; if all is well it's fine to terminate silently. Make sure your main function frees any memory that AllocatePoint3d allocates. Hint: Don't make assumptions about what AllocatePoint3d does, even though you implemented it. Imagine that your main is testing an implementation of AllocatePoint3d that is implemented by another user.

Note: we will be using valgrind to test whether your code has a memory leak! (You probably should too...)

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As usual, your code must:

• Compile without errors or warnings on CSE Linux machines (lab workstations, attu, or CSE home VM) with gcc -Wall -g -std=c17 -o ex3 ex3.c -- do not submit a Makefile.
• Have no crashes, memory leaks, or memory errors on CSE linux machines. (Suggestion: valgrind)
• Follow the quality guidelines we covered in class, including the formatting, modularization, variable and function names, and so on. If in doubt, follow the Google C++ style guide. We also suggest using cpplint --clint.
• Be robust: you should think about handling bogus input from the user (if any), and you should handle hard-to-handle cases (if there are any) gracefully.
• Have a comment at the top of each source file with your name, and CSE or UW email address.

You should submit your exercise to the course Gradescope.