C.

Setting Up a C Development Environment

Install GCC, configure VS Code, and learn to compile and run C programs with Makefiles.

Variables and Storage Classes in C

Learn variable declaration, initialization, scope, and the four storage classes: auto, static, extern, and register.

Data Types in C

Explore C's built-in data types including integers, floating-point numbers, characters, and how to use sizeof and type limits.

Operators in C

Master arithmetic, bitwise, shift, and logical operators in C, including operator precedence and the comma operator.

Control Flow in C

Learn if/else, switch, for/while/do-while loops, break, continue, and the goto statement in C.

Functions in C

Learn function prototypes, parameters, return values, recursion, and static functions in C.

Arrays in C

Learn 1D and 2D arrays, array decay to pointers, variable-length arrays, and string arrays in C.

Strings in C

Learn how C strings work as null-terminated char arrays, how to use string.h functions, and how to handle strings safely.

Introduction to C Programming

Learn what C is, its history, and why it remains one of the most important programming languages today.

Intermediate

For developers with core concepts down

10 lessons

Pointers in C

Master pointer arithmetic, pointer-to-pointer, const pointers, void pointers, and function pointers in C.

Memory Management in C

Learn malloc, calloc, realloc, and free, understand heap vs stack, detect memory leaks with Valgrind, and avoid buffer overflows.

Structs in C

Learn struct definition, typedef, nested structs, struct pointers, and bit fields for efficient data packing.

Unions and Enums in C

Understand union memory layout, how to use enum and typedef enum, and practical use cases for both.

File I/O in C

Learn fopen/fclose, fread/fwrite, fprintf/fscanf, binary file handling, and proper error checking for file operations.

The C Preprocessor

Learn #define, #include, #ifdef, function-like macros, include guards, and #pragma in C.

Error Handling in C

Learn errno, perror, strerror, setjmp/longjmp, and defensive programming patterns for robust C programs.

Linked Lists in C

Implement singly and doubly linked lists in C with insertion, deletion, and traversal operations.

Data Structures in C

Implement stack, queue, hash table, and binary search tree from scratch in C.

Makefiles for C Projects

Learn Makefile syntax, variables, pattern rules, phony targets, and how to manage multi-file C projects with make.

Advanced

Production-grade patterns for experienced engineers

4 lessons

Concurrency with pthreads in C

Learn POSIX threads, mutex locks, semaphores, condition variables, and how to avoid race conditions in C.

System Programming in C

Learn fork/exec, signals, pipes, mmap, and socket basics for Unix/Linux systems programming in C.

C Security: Buffer Overflows and Safe Coding

Learn about buffer overflow exploits, format string vulnerabilities, and how to write secure C code using safe functions.

C Interview Preparation: Top 30 Questions

Master the top 30 C interview questions with detailed answers and working code examples.