Pointers in C for Absolute Beginners – Full Course

Finally understand pointers in C in this course for absolute beginners. Pointers are variables that store the memory address of another variable. They "point" to the location of data in memory. With a bunch of examples, this course demystifies pointers and their various uses, covering topics such as passing by reference vs. value, void pointers, arrays, and more.

✏️ Course created by @onaecO

⭐️ Contents ⭐️
(0:00:00) Introduction
(0:00:39) What is a computer eli5 CPU, RAM, bytes
(0:08:04) Data Types
(0:13:31) Intro to processes
(0:16:44) process memory layout
(0:19:17) Variables in memory
(0:23:01) Naive change_value program
(0:28:05) Change_value with pointers
(0:33:03) The classic swap
(0:34:05) Why declaration and dereference have the same syntax for pointers?
(0:38:39) Advantages of passing by reference va passing by value
(0:45:26) Why do pointers to different data types have the same size?
(0:47:49) Given that pointers have all the same size, why do we need a pointer type?
(0:58:16) void pointers are confusing
(1:00:14) why malloc is handy and more on void*
(1:09:09) Are arrays just pointers?
(1:25:00) Array Decay into a pointer
(1:32:59) why array decay is useful?
(1:37:49) arr[5] == 5[arr]
(1:39:04) pointers to pointers: **argv
(1:47:11) *argv[] or **argv?
(1:52:41) pointer to functions
(1:59:02) use case with pointers to functions

🎉 Thanks to our Champion and Sponsor supporters:
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👾 Agustín Kussrow
👾 Nattira Maneerat
👾 Heather Wcislo
👾 Serhiy Kalinets
👾 Justin Hual
👾 Otis Morgan

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[D]

I loved it! I sat down and typed the whole thing and every exercise and this helped a lot. The explanations and examples are really good, I learned a lot even if I thought I was not a total beginner. :)

[rowancode]

I just started learning C/C++ and this gets dropped, definitely you guys are amazing, thank you for the course! This is really helpful <3

[meuhch]

Amazing video, with extremely clear explanations of what pointers are and how to use them. Thank you very much!

[onaecO]

All the Code used and few notes here:

I learnt myself a lot with freeCodeCamp and now, crazy enough, i produce myself tutorials!
I will always be a promoter of this amazing project, empowering people for free all over the world.
A particular mention to Beau that allowed me to be part of this, such a gentleman! ❤

[juanmanuelfuentes]

As a computer science engineer I can see how understanding pointers pavement you to understand the underneath meaning of variables, arrays and complex structures. That's something that we all are forgetting with 'modern' languages.

[eduardof.vicentini]

Great class! Just finished it, pointers explained with mastery, thanks!

[minimalSwift]

This is just the best course about pointers that I found online! 😀

[diegoignacioantonioquintan]

Awesome masterclass! Really well explained and very comprehensive, thx for this content!!

[buddikagunawardena]

The first 40 minutes was all it took for me to understand this concept of pointers clearly.
Great Tutorial!

[kevincodes]

Brilliant, very well explained. Thank you for sharing your insight.

[tvxlc]

Interesting and informative video to watch - thank you very much!

[CarCinCal]

So anyway this is the best C Tutorial on YouTube…. Well Done!!! 👏🏽 👏🏽 👏🏽

[Abdallah..................]

I have just watched this video. And I would tell you that you got a new follower.
Such a great video.
Also the site you mention to visualize how pointers work.
I really advice people to watch this video and to be patient.
According to me. I understand the whole idea about pointers by the first 40 minutes.

[slowcoding]

Wow! Running the program at the visualization site, we can visually see how the pointer is working. Great! Thank you for the insightful lecture.

[gabrielgomesmabiala]

C is a classic language never get old evergreen thank you once more FFC

[phantom_vasploit]

I loved this! I finally understood the pointer concept. Thank you for this.

[Naoty_san]

wow, it makes me understand things! Thank you!

[sairajdas]

Brilliant video. Also subbed and clicked the bell. Waiting for your next video.

[veplexer]

As someone who learned pointers at university, I found the video really useful, especially the introduction about computer memory.
In my opinion, it's not really dedicated to "Absolute Beginners".
Thanks for your efforts.

[Anduuu]

Very good tutorial. Could say it's the best on the market and it's free. Would gladly donate