Module 2 of 8

Systems Programming in C

Pointers, ownership, dynamic memory, files, debugging tools, and a persistent contact-book project.

4 lessons

~22 hours

140 XP

Build a precise mental model of addresses, dereferencing, pointer arithmetic, structs, and the stack-versus-heap distinction.

Use malloc, calloc, realloc, and free correctly, then implement a growable vector and a singly linked list with clear ownership.

Read and write files safely, report failures with errno, and use GDB, sanitizers, and Valgrind to find real defects.

Create a persistent CLI contact book with dynamic records, search, deletion, validation, file storage, and a repeatable test plan.