Month 3 · Week 12 of 40

Dynamic Memory Allocation & Valgrind

Take full control of the computer's heap memory.

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Week Overview

Learn how operating systems grant dynamic heap memory at runtime. Master malloc, calloc, realloc, and free, and diagnose memory leaks using Valgrind.

Core Concepts & Topics

Heap Memory vs Call Stack

malloc() and calloc() Usage

Resizing Buffers with realloc()

Avoiding Dangling Pointers & Double Free Bugs

Valgrind Memory Leak Profiling

Hands-On Challenge

Week 12 Project: Dynamic auto-expanding vector array library in C.

Every week at DoxaTech Hub requires submitting real working code tested by our automated grading suite. You will push code to your personal GitHub repository, open pull requests, and receive instant feedback.

Frequently Asked Questions

What is a memory leak?

A memory leak happens when heap memory is allocated but never freed after use, gradually consuming system RAM until the process crashes.

Week 11: Structs, Strings & File I/O

Week 13: Big O Notation & Array Algorithms

Interactive Learning

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Month 3 Modules

This week is part of Systems Programming in C.

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