Global variables in a multi-file project in C

Source code can be found here:

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[Yankeeed]

It is funny how I feel like I have taken seemingly simple things like this for granted. Even after using C off and on for many years, I still learn some new subtle things about the language, especially from watching your videos. Thank you for this.

[NOPerative]

Awesome job describing header file usage and importance.
Additionally, good to see you're back and making more content for 2022 - good stuff.

[leythecg]

Very clearly explained! Many, many thanks for that!

[roopibhai]

thank you man for explaining global and external in simple way with actual demo.

[hossamnasser]

Your simple way of explanation is unique. Your videos make me love coding. Thanks, man <3.

[boryswwa]

Thanks for this explanation. Simple and straightforward. Exactly what I needed!

[sflrvnz]

It's just simple and important things that I've learned from this video

[romakekua]

Hello from Georgia <3, I am very helpful with your videos, you are doing a very good job for free,
This is something we need for beginners.

[reshmaimmaculater.]

Thank you so much for this video. I was looking for more clarity on this topic.

[nishant]

Thank you for this video..This video is a necessity for anyone who works in a real team environment and do real coding not interview coding

[neetorstar]

Life saver. I was cracking my brains on that

[fuscatube]

Hi... Thanks for this video. I've one question: if you are including the "global.h" file in multiple .c files, is there a need to protect the extern declaration? I mean, do you need to use #ifndef in this "global.h" file?

[video]

What if don't create the file "global.c" and declare global variables directly in the header file "global.h"?

[KFlorent]

You were back and I missed it. I have failed you...

[alvarogaliana]

Rather than modifying the x, I'm trying to retrieve its value in the main2.c function. But apparently this doesn't do it, when I print x in main2.c is set back to 0. Is there any way to do this? I thought global variables would do the trick. Edit: I must use two distinct executable files for this, that's kind of required for my project.

[saikishorekemburu]

Hey I have a doubt, If I want to access a global variable and change the value of that variable in another file.how can I?

[raghavimadhwa]

Hey, I have one doubt. If I want to share a global variable across two C files which are in different directories, then how to do that?

[tekshanmadhawa]

Hey,
good explanation but I have one doubt ? when you rrun both files in same terminal in VS code which file's integrated terminal was used ? I am confused actually .

[markm]

Why is c so simple and python I just struggle to understand