The Little Book of C

65 pointsposted 10 hours ago
by ghostrss

22 Comments

robviren

8 hours ago

I wish someone spoon fed me how to add path for C compilers in Windows back in the day. We lose a good 90% of people to installing C from ever learning C. Feel like godbolt or an online compiler might be a reasonable starting place these days. C is amazing but can be so punishing early on compared to stupid opening up any text editor on earth and writing an HTML file. Not advocating for more JS learning but it's hard to beat the getting started on that.

anthk

7 hours ago

Most Windows users just used Codeblocks C/C++ -or anything similar- and setup everything for them.

JSR_FDED

6 hours ago

The author is right about C leading to better understanding of computers, OSes and other languages.

For me a breakthrough moment was when I saw my C code interleaved with the generated assembly. Registers, calling conventions, calling OS functions…all laid bare!

i_am_proteus

9 hours ago

Another very fine online reference for someone new to C is Beej's Guide to C Programming: https://beej.us/guide/bgc/

(Here is a reference to K&R, the standard first reference to C, because I am obligated to make such a reference.)

MomsAVoxell

8 hours ago

I always find, whenever I loan Peter Van der Lindens’ “Deep C Secrets: Expert C Programming” book to a fellow colleague, I never get it back. For a while I had 10 or so spare copies to hand out as treats, but now I just refer everyone to this PDF:

https://progforperf.github.io/Expert_C_Programming.pdf

If you’re a C programmer, old or new, and haven’t encountered this book: Stop What You Are Doing And Go Read It! It’s amazing.

pascahousut

9 hours ago

And the K&R reference is useful too. It's a small book about a small language that does not have many features and maps to very basic concepts on hardware that really only does very basic things.

melonFella

8 hours ago

It's so cool! Do you have a similiar resource about c++?

user

8 hours ago

[deleted]

user982

9 hours ago

cwnyth

9 hours ago

And it's well worth reading this earlier discussion, too.

fsckboy

8 hours ago

I wonder why that previous submission was "flagged"?

tolerance

8 hours ago

The HN of 5 months ago was apparently less receptive to anything made involving LLMs than they are today.

tom_

5 hours ago

Another option might be that Nth pass LLM output is not as good as (N+5 months)th pass LLM output. At some point before the amount of effort involved reaches that required to do it oneself, the output will reach an acceptable quality level... or so you'd hope, if any of this business is to make any sense.

tolerance

3 hours ago

I think I follow where you’re coming from but, it doesn’t seem that this project has been updated since October 2025.

user

10 hours ago

[deleted]

agrishin

7 hours ago

The fact that it's AI generated is simultaneously thrilling and frightening. Especially considering that some AI Agents might be trained on that.

threethirtytwo

9 hours ago

Ai is getting really good. I can’t tell the difference anymore.

watashiato

7 hours ago

I can (it's really obvious here) and wish I couldn't. Every time I run into something I might wanna read, but it turns out to be LLM "assisted" writing after I've already invested some time, it feels like I was tricked into eating cardboard.

And when I bring up that this should be clearly marked, preferably up front, it's often taken as a personal slight.

I realize this is a me problem to some extend, I shouldn't feel strongly about this, but I do.

girvo

8 hours ago

There are some very small tells, like the constant "rule of threes" that AI loves to follow, but you're right that this is much harder to tell than it used to be.