Systems and low-level

C tutorial

Understand compiled programming, memory, and the foundations beneath many systems.

c16 lessons

#include <stdio.h>

int main(void) {
  printf("Hello from C\n");
  return 0;
}

Designed forStudents learning systems and fundamentals

Learning formatShort explanations, examples, practice connections

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COURSE CURRICULUM

16 lessons in a clear order

Finish one section at a time or jump directly to a concept you need.

Foundations

From source file to native executable

Learn how from source file to native executable works in C, why the underlying model matters, and how to apply it in a small program without hiding important trade-offs.

Declarations, headers, and translation units

Learn how declarations, headers, and translation units works in C, why the underlying model matters, and how to apply it in a small program without hiding important trade-offs.

Core concepts

Variables, storage duration, and scope

Learn how variables, storage duration, and scope works in C, why the underlying model matters, and how to apply it in a small program without hiding important trade-offs.

Integer types, structs, and representation

Learn how integer types, structs, and representation works in C, why the underlying model matters, and how to apply it in a small program without hiding important trade-offs.

Operators, bitwise work, and undefined behavior

Learn how operators, bitwise work, and undefined behavior works in C, why the underlying model matters, and how to apply it in a small program without hiding important trade-offs.

Control flow

Branches, switch statements, and invariants

Learn how branches, switch statements, and invariants works in C, why the underlying model matters, and how to apply it in a small program without hiding important trade-offs.

Loops, indexes, and sentinel values

Learn how loops, indexes, and sentinel values works in C, why the underlying model matters, and how to apply it in a small program without hiding important trade-offs.

Data and composition

Functions, prototypes, and call stacks

Learn how functions, prototypes, and call stacks works in C, why the underlying model matters, and how to apply it in a small program without hiding important trade-offs.

Arrays, pointers, and pointer arithmetic

Learn how arrays, pointers, and pointer arithmetic works in C, why the underlying model matters, and how to apply it in a small program without hiding important trade-offs.

Characters, strings, and buffer boundaries

Learn how characters, strings, and buffer boundaries works in C, why the underlying model matters, and how to apply it in a small program without hiding important trade-offs.

Reliability and structure

Error codes, errno, and defensive checks

Learn how error codes, errno, and defensive checks works in C, why the underlying model matters, and how to apply it in a small program without hiding important trade-offs.

Headers, object files, and linking

Learn how headers, object files, and linking works in C, why the underlying model matters, and how to apply it in a small program without hiding important trade-offs.

Applied engineering

Dynamic memory, ownership, and lifetimes

Learn how dynamic memory, ownership, and lifetimes works in C, why the underlying model matters, and how to apply it in a small program without hiding important trade-offs.

Files, streams, and binary data

Learn how files, streams, and binary data works in C, why the underlying model matters, and how to apply it in a small program without hiding important trade-offs.

Testing with sanitizers and debuggers

Learn how testing with sanitizers and debuggers works in C, why the underlying model matters, and how to apply it in a small program without hiding important trade-offs.

Capstone

Capstone: a memory-safe command-line utility

Learn how capstone: a memory-safe command-line utility works in C, why the underlying model matters, and how to apply it in a small program without hiding important trade-offs.