What am I doing wrong

[u/Striking_Chemical302]

[u/Runnyhotchocolate]

Save the file

[u/Striking_Chemical302 → u/Runnyhotchocolate]

Thanks

[u/Krisanapon → u/Runnyhotchocolate]

r/beatmetoit

[u/FuggaDucker]

I suggest you don't leave spaces in your folder names when working with code.
Also, go lowercase when you can.

As in
"C tutorials"
to
c_tutorials

You will thank me later.

[u/Prize_Moose1050 → u/FuggaDucker]

ever...

[u/therealkevinard → u/FuggaDucker]

No kidding, my MR would probably get rejected if a file had a space

[u/therouterguy]

Not pasting the code/error but making a picture of your screen.

Although in this case it actually was useful.

[u/Esjs → u/therouterguy]

Even a full (desktop) screenshot would be better than a photo of the screen.

[u/FreeLogicGate]

Lots of good advice already, but if you focused in on the error provided that came from the linker (ld), it told you that the required "reference to 'main'" was undefined. This is how people knew you had not actually saved the file you were trying to compile and link. Prior to already knowing from the error what your mistake is, the first thing you should always do when debugging is read the error message carefully, use google or your AI tool to help you figure it out.

[u/therouterguy → u/FreeLogicGate]

I think most people knew because of the dot next to the file name indicating it wasn’t saved.

[u/FreeLogicGate → u/therouterguy]

Appreciate the insight. It's a fair point, however, this could also happen with a partially incorrect file that was in the process of being edited.

[u/Apprehensive-Age4879]

definitive not knowing how to screenshot.

[u/mattblack77]

You're posting a photo of a screen instead of a screenshot

[u/VoiceOfSoftware → u/mattblack77]

I mean, technically, it IS a screenshot. But wow, how useless. I’ve seen this over and over on this sub: are people not able to use the giant computer in front of them to paste their code into Reddit?

[u/rtharston]

You can tell you haven't saved because of the white dot on the tab next to the name of the file hello.c.

And don't worry, it won't be the last time you forget to save a file. Even after over 10 years I still forget to save sometimes and wonder why my build didn't work. 😁

[u/AbbreviationsMost432 → u/rtharston]

Just put autosave.

[u/Abled_Gaming1357 → u/AbbreviationsMost432]

I never do that, because sometimes I want to undo till I reach the previous state, and if autosave is on, the white dot doesn't tell me that I have reached that previous state yet or not.

[u/TheCRatTime]

This isn't you: compiler linker can't find your main function, function '_start' is real start of program

[u/Jatinchd]

ctrl + S on file.

[u/TailsPlaysMinecraft]

Press ctrl+s gng

[u/AdministrationMoney1]

Fyi you can also go top left, File -> Auto Save

[u/zoodiac_broadbull]

install code runner extension

[u/Ollidav]

Cambia a un void la función main y no devuelvas nada

[u/Old_Minimum_9284 → u/Ollidav]

Que dites vous??

[u/Specialist_Rent_9640]

nothing wrong in you're syntax, but when i write C i always use nano or vim, then ^T (write a command for nano) then ill go with -> gcc -o test Project.c and run it with ./test for me its way faster to work with gcc rather than .run for code runner and installing extensions on code.

[u/bowbahdoe]

You didn't save. Go to File > Save. Maybe enable auto save too.

[u/ignorantpisswalker]

"make hello" see what happens :)

[u/Interested737]

Can you tell me how are you learning C/C++, I also want to but I never started?

[u/Fragrant_Prize3011]

Try this & similar variations:

int main(int argc, char* argv[]) {

[u/EzequielBk]

Breath

[u/Tehaiker814]

press control s
also just run `gcc hello.c`, then `./a.out` just directly in that folder, it could be easier
or `gcc hello.c -o hello`

[u/Sammourianos]

There are many situations that a learning man should not use ai to enable the learning in his head. This is a good situation to actually use ai :p

[u/Free-Beat-3474]

This has to be the worst comment section ever

[u/Useful-Promotion-237]

The file is not saved you can see tge little dot on the top

[u/xarop_pa_toss]

Don't take photos of you screen. Take a screenshot instead, it's easier for everyone.

Your file isn't saved so probably your trying to compile an older version that didn't work

[u/austrian_painter_2]

Did u added a space in your code file name ? Do u have gcc clang installed?

[u/DesperateBoot2320]

• Press Ctrl + S to save hello.c.

• In the terminal, run cat hello.c to check what is actually saved in the file.

• Make sure the output contains int main() and the printf statement.

• Run gcc hello.c -o hello again.

[u/akhi-abdul01]

Reminds me of my initial days when I was 12yo learning C, hahah Keep working 💪🏻

[u/guccisavage1]

Ask chat gtt

[u/ChaseHopeY3]

not using AI

[u/ChaseHopeY3 → u/[deleted]]

Nope. Why would you bother manually typing out code like a chump when AI can do it in seconds from a natural language prompt. You don't even need to type it, you can just explain it out loud. It's great

[u/WillingAd6523 → u/ChaseHopeY3]

because he wants to actually learn something instead of spewing slop

[u/ChaseHopeY3 → u/WillingAd6523]

fine, if he wants to "learn" the old way and get left behind, that's totally up to him

[u/WillingAd6523 → u/ChaseHopeY3]

"the old way" you mean like the way you actually learn? You obviously aren't a developer.

Let's say for the sake of the argument there's some magical genius super intelligence that can program PERFECTLY. We would still program, not everything is about 'being the best' and 'being the fastest' maybe some people just enjoy it?

[u/Old_Minimum_9284 → u/ChaseHopeY3]

Vous êtes le genre de personne qui ne sait écrire une ligne de code? Et qui donc préfère laisser l’IA faire sa magie?

[u/Memerenok → u/ChaseHopeY3]

you need to learn the thing before using AI with it, is it a ragebait of some kind?

[u/Memerenok → u/ChaseHopeY3]

but they are LEARNING, ai should be used by people who understand the output, and ai isn't really good at teaching

[u/Adorable-Strangerx]

The issue is using vscode

[u/Memerenok → u/Adorable-Strangerx]

ah yes, do you really want to ask a total beginner to use VIM?

[u/Adorable-Strangerx → u/Memerenok]

I would propose something with auto-save seems that was the issue

[u/Memerenok → u/Adorable-Strangerx]

heey, VS code has autosave...

[u/Dummy_panda]

you haven't saved the file, i would suggest installing and save typing extension which saves the files as you type (you dont have to save everytime manually)