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Systems & Low-Level Beginner

C++ Pointers and Memory in One Hour

A focused crash course that finally makes stack, heap and pointer syntax click.

Rated 4.1 out of 5 from 9 reviews 38 students

AP Created by Ana Petrova

  • Last updated August 2026
  • English
  • 1h 8m of material
  • 9 lessons

What you will learn

6 concrete outcomes

Every bullet below is something you will have built, shipped or be able to explain by the time you finish the last lesson.

  • Read any pointer or reference declaration and say precisely what it means out loud
  • Explain the difference between stack and heap storage using addresses you printed yourself
  • Allocate and release heap memory correctly, then see why you should rarely do it by hand
  • Recognise dangling pointers, double frees and leaks from their crash signatures
  • Understand array-to-pointer decay and why std::span exists
  • Replace most raw pointer code with unique_ptr, vector and span with confidence

Course curriculum

4 modules · 9 lessons · 1h 8m of material

3 lessons running 22m in total. Each lesson ships with the finished source files and a short written recap, so you can follow along in your own editor and skim the module again later.

Lesson-by-lesson titles, code downloads and exercises live inside the course library you get access to straight after checkout.

3 lessons running 24m in total. Each lesson ships with the finished source files and a short written recap, so you can follow along in your own editor and skim the module again later.

Lesson-by-lesson titles, code downloads and exercises live inside the course library you get access to straight after checkout.

2 lessons running 14m in total. Each lesson ships with the finished source files and a short written recap, so you can follow along in your own editor and skim the module again later.

Lesson-by-lesson titles, code downloads and exercises live inside the course library you get access to straight after checkout.

1 lesson running 8m in total. Each lesson ships with the finished source files and a short written recap, so you can follow along in your own editor and skim the module again later.

Lesson-by-lesson titles, code downloads and exercises live inside the course library you get access to straight after checkout.

4 modules · 9 lessons

1h 8m total length

Requirements

Short list, and deliberately so. If you meet these you can start today.

  • Basic C++ syntax: variables, functions and a compiler you can run
  • About an hour of uninterrupted time and a terminal open beside the material

About this course

Pointers are the wall most C++ beginners hit, usually because they were explained with a diagram of boxes and arrows and never with running code. This one-hour crash course fixes the mental model. You watch addresses printed live, see the stack grow and shrink across function calls, and allocate on the heap until the difference stops being abstract.

Every lesson is short and hands-on. You will read and write the declaration syntax that trips people up, including pointer-to-const versus const pointer, arrays decaying to pointers, and why a reference is not just a nicer pointer. Then come the four classic failures, dangling pointers, double free, leaks and buffer overruns, each reproduced on purpose so you can recognise the symptoms in your own crashes.

The closing lessons show the modern escape hatch: unique_ptr, vector and span remove almost all raw memory management from everyday code. You finish knowing exactly what those types do underneath, which is the point of learning pointers in the first place.

Topics covered

Frequently asked questions

Still unsure about something? Write to misteryjj100@gmail.com and a human answers, usually the same working day.

For the mental model, yes. This is a focused mini-course covering pointers and memory only, so nothing is diluted by syntax you already know.

The addressing, stack and heap material transfers directly to C. The final module on smart pointers and span is C++ specific.

Modern C++ from Scratch if you are still learning the language, or the intermediate move semantics course if you already write classes and want to master ownership. If you are heading toward Rust, this is also the quickest way to see what its ownership rules are protecting you from.

Checkout is handled on our provider's secure payment page. The moment your payment clears we email your personal access link and access code to the address you used at checkout, and the same link appears in your account library. There is nothing to install and nothing to wait for.

Email misteryjj100@gmail.com within 14 days of your purchase, quote your order number, and we refund the full amount to your original payment method. No form to fill in and no questions about how much of the course you watched.

What students say

Reviews are written by people who bought this course. We publish the critical ones too.

4.1

Rated 4.1 out of 5

Course rating · 9 reviews

Rating distribution

  • 5 stars 44%
  • 4 stars 33%
  • 3 stars 11%
  • 2 stars 11%
  • 1 star 0%
  • IH

    Ingrid Halvorsen

    May 2026
    Rated 5.0 out of 5

    Short, dense, no padding

    Sixty minutes, no intro music, no biography. Addresses, then syntax, then the failure modes, then what to reach for instead. I wish more courses had this much discipline about their own running time.
  • MK

    Marta Kovač

    Tech lead

    Mar 2026
    Rated 4.0 out of 5

    Good refresher after years in managed languages

    I came to this from years of garbage-collected languages and needed the memory model back in my head before a code review. It did the job in one sitting. The span material does presume some familiarity with contiguous ranges that I did not have, which cost me a second viewing.
  • NO

    Nadia Osei

    Backend engineer

    Feb 2026
    Rated 5.0 out of 5

    Worth it for the four bugs section alone

    The chapter on the four classic memory bugs is the bit I keep coming back to. I had been filing use-after-free and double-free under the same heading in my head, and they really are not the same failure with the same fix.
  • TR

    Tomas Rehak

    Embedded developer

    Jan 2026
    Rated 5.0 out of 5

    The stack diagram finally landed

    I have read the pointer chapter of three different books and none of them drew the stack frame the way this one does. Watching a local go out of scope and then seeing that same address handed to the next call made the whole dangling-pointer problem obvious rather than theoretical. An hour well spent for the price of a coffee.
  • RD

    Rafael Duarte

    Systems programmer

    Nov 2025
    Rated 4.0 out of 5

    Great on syntax, quiet on decay

    The trick of reading a declaration from the identifier outwards is taught better here than in anything else I have watched, and it alone is worth the fiver. Losing a star because array-to-pointer decay gets a single passing mention, and that is precisely the corner I keep cutting myself on at work.
  • BK

    Ben Kowalczyk

    Junior C++ developer

    Aug 2025
    Rated 5.0 out of 5

    read this before your first C++ job

    read this before your first C++ job. the four minutes spent rewriting the raw new and delete example with unique_ptr and vector replaced most of what I thought I understood about ownership, and I have not typed a bare delete since.
  • YB

    Youssef Benali

    CS student

    Jun 2025
    Rated 4.0 out of 5

    solid intro, wanted something to do

    solid intro and the pacing is right. my only wish is for a couple of guided exercises instead of watching the examples compile. I ended up writing a leak on purpose just to prove to myself I had followed it.
  • EF

    Elena Fischer

    Self-taught, switching careers

    Mar 2025
    Rated 3.0 out of 5

    Correct, but the pace is brutal

    Nothing in here is wrong and the modern-replacements chapter is genuinely useful. The problem is arithmetic: an hour split across addresses, declaration syntax, four bug classes and the smart pointer family means no idea gets a second pass. I rewound the heap walkthrough four times before it stuck. If you have never seen a pointer at all, this should not be your first stop.

Showing the 8 most recent of 9 reviews.

Your instructor

AP

Ana Petrova

Systems engineer and C++ instructor

  • 206 students taught
  • 9 courses published
  • 4.4 instructor rating
  • C++
  • Systems programming
  • Memory management
  • Concurrency

Ana spent nine years writing real-time C++ for trading infrastructure before moving into teaching full time. She specialises in the parts of the language people quietly avoid: templates, move semantics, custom allocators and the memory model. Her courses are built around profiling sessions on code that is deliberately slow, so every fix is something you measure rather than memorise. She still contributes to two open-source benchmarking libraries.

See every course by Ana Petrova
$5 USD

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