Header Files - C++ Tutorial For Beginners #14

[@alex_mahone]

Love your teaching style! I always learn something new when you post a new video!

[@NeuralNine]

appreciate it :)

[@christreedee]

@@NeuralNine how does one run one of these .h files thanks :)

[@scottblake89]

I love that you jump right into it... it seems like all the most viewed or liked videos start off with trying to sell something and i cant stand that..

[@AnonymousUser-ui4vo]

then sit dow-

[@Guy-bf7wm]

Really thank you for these tutorials, I'm starting with competitive programming and I wanted to use c++ and suddenly I saw these videos and they really helped me.

[@wangxian7924]

This video was very clear and amazingly explained. Learnt a lot! Thank you.

[@tamirrozenfeld3572]

Finally i found a video that explain what header is and not make me watch 30 minutes video hoping to hear or get a hint of what header is ! THANK YOU VERY MUCH!

[@krakusek865]

here I found what I was looking for, a very good video. Thank you bro!

[@fatman2217]

I wasted 3 days looking for a fix on how to include user-made header files, it always caused a linker error in VS Code, can't thank you enough for this video mate :)

[@bachirdekdouk5440]

How do you configure this include in the tasks.json file if you dont want to do it from command line ?

[@m7md_alj]

you have no idea how long i spent trying to figure out how to use the header file tysm

[@JoaoPedro-nh7uw]

Thank u so much. I was having problem with a function that was being undefined, and you just saved me😃

[@rouisaek]

The header feels like an Interface. Nice tutorial

[@sashokostadinov5773]

Thank you so much! I am also using the extension and yesterday we started learning about header files and I was wondering what was I doing wrong. I found from internet which file what should it contain but I could not find why it was not compiling.

[@ricardocarvalhomiguel2684]

Thank you very much for the video, I'm from Brazil and only used C ++ in VS2019, and this video helped me to understand how to compile headers files. I will follow more videos from your Channel

[@cenkerozkan9906]

You explained it very simply and clearly. It couldn't have been explained better. Thanks

[@ebiscaia]

Hi, is there a way to edit the task.json to include something like "include/*.cpp" to compile everything with F5?

[@Aikocake]

Any update to this inquire?

[@ebiscaia]

@@Aikocake Unfortunately not

[@DerKommandant]

@@ebiscaia Have you found a solution yet?

[@ebiscaia]

@@DerKommandant nope, mate. It’s been a while I don’t use C++

[@DadicekCz]

​@@ebiscaiabruh, one would say it is one of the most basic things a programmer can do. I'll never stop hating this system

[@danieladeba206]

Wow,Thank you you made me to come out confusion of running c++ with the header files.

[@slattsan1315]

Great tutorials bro, refreshed my c++ quick and good w this series

[@mrbout8911]

In the next videos, you can enlarge the font a little to be clear because I am using the phone and thank you for the effort

[@DeepakPandey-dn9iz]

thank you so much sir. I was facing issues with linking the files.

[@janmichaelaustria620]

Nice video man! I spent hours trying to find a work around for CMake, and this cleared it up in like 5 mins! You rock!

[@33samogo]

how did you compilie with g++ -o main.exe main.cpp includes/calculations.cpp commanad?! is not working for me, it works with g++ main.cpp includes/calculations.cpp -o main.exe. What I am missing here? Is there a way to configure Compile Run "F6" command to work with includes?

[@ric7702]

A bad practice but it really works, actually that is the only one that worked for me, I could't made work the one with the header file. I am working with C in VSC. But well at least one way worrked for me. Greetings.

[@JianqiuChen]

still does not work, it says main.exe is not recognized! vscode and c++ is the hardest config that I have done in my life, 4 hours watching videos cannot get a damn hello world + another class set up. And are you telling me that I have to run the command "g++ -o main.exe main.cpp includes/mynewclass.cpp" every time I create a new class???

[@Matdrox]

I'm wondering this too...

[@sinapiranix]

thank you man! youre best teacher for c++

[@agentstona]

but what if you have 5 different headers that you use for 5 different things at compile do you have to also specify the other 5 different .cpp files ?

[@deadeye8]

Thats where #pragma once Comes into play

[@malolan98]

Keep going! Really great method of teaching!

[@sinaghezeljeh2227]

great video again like every time

[@homelikebrick42]

Why should the files have to have the same name?

[@Inoom.]

They don't have to.

[@robromijnders]

This is really great, thanks for posting!

[@123userthatsme]

Thank you for explaining the h vs cpp thing, i.e. being able to hide the actual functions in cpp. I didn't understand why the boilerplate was duplicated... it was driving me nuts!

[@rouisaek]

the .h file is like a contract to the end user. and they are not duplicated cuz the .h file have the declaration methods and the .cpp file must have the definition of that methods.

[@AyaGamal2010]

@@rouisaek Good clarification!

[@rouisaek]

Thanks

[@danykmk1174]

believe me !!! You are the best for me !!!!! your method is great

[@doc9448]

Thanks for your instruction! Very easy to understand and informative!

[@livedreamsg]

So is there any way to get Visual Studio Code to do this for me? I have to jump to the terminal every time, as Visual Studio doesn't recognize it at all. At that point I'm much better off just using Vim.

[@NeuralNine]

It's always better to use vim

[@tamimkhan7919]

Thanks teacher this video was really helpful for me.

[@danielschaad3084]

what would be the command line in the case I have multiple header files? Do I have to write every single one? or is there a way to compile the whole folder "includes"?

[@leonwozniak9456]

i have a same problem, did u find any solution?

[@mubarakoyeyinka8520]

Thanks a lot :) your explanation did help me!. I am trying to use both g++ and cl compiler and I just follow your example using "cl /Zi /EHsc /nologo /Fe:main.exe main.cpp Random1.cpp" in powershell from the working directory. And that's work!

[@clarkniyonzima9724]

I have a question, what about the #ifndef, #define and #endif in the header file

[@ahmedosama6856]

Its a best practice for files validation

[@ayushdubey8745]

How to run a project with a single header file and multiple source files?

[@enigma3292]

Great vid!

[@NeuralNine]

thanks :)

[@hallucinatory.767]

Thanks for the tutorial bruh! That's Amazing.

[@hyperbhavik]

Finally got it, thank you very much

[@catorlife]

for some computers, you can't run the "main.exe" command in the terminal, you need to rewrite it as ".\main"

[@Allusioo]

thanks bro

[@rodrigotorres6426]

Nice video, months to searching this!!

So, linker identify the implementation of the declaration just by the same filename? What about include guard i learned in C. its not relevant anymore?

[@evrolcuk2046]

does "not adding the .cpp file" directly have any importance in terms of privacy? i didn't get that?

[@yumyumtales]

Great video !!! very well explained

[@dakshdesai]

Sir can you make a obs studio with python

[@inx1819]

lmfao

[@juanjocg1870]

xddd

[@xfire3778]

What does this even mean?

[@larissasouza8169]

Great video, thank you so much for that!

[@ali_youtube_user_7351]

How can I make a header file with its imolementation file that can be included and used across any cpp filed without explicitly including it to your project ? Just like C++ header files (iostream, vector, etc)

[@ZAblaze]

thank you in 2nd class of programming and they taught this in the first one but i didn't pay attention in that lesson lmao

[@syldris]

Is there any way to run (or execute) the main code(main.cpp) without typing a command such as "g++ -o main.exe main.cpp calculations.cpp"? In Visual Studio (not VS Code), it allows to users to have a class with its header file(.h) and definition file(.cpp) and run it without any single special terminal command, as long as all the files are in the project folder. It seems like VS Code does cannot find the header file's directory on its own.

[@luke7049]

The 'button' you press in Visual Studio is basically an automated implementation of compiling the source code (i.e using the terminal command)

[@hodayfa000h]

BRO just use visual studio it is 100 times better

[@hodayfa000h]

of course as an ide Not a code editior

[@syldris]

@@hodayfa000h Agreed! Already swapped to VS!

[@hodayfa000h]

@@syldris oh yeah this was 1 year ago of course it changed

[@Galaktium]

Nice vid, very clear, very helpful.

[@lucasjoss5733]

tanks bro, you realy help me to solve the compiler error

[@ViktorKatzy]

The only reason why his C++ code works is that it's afraid of his biceps an getting punched 😹😼 but jokes aside, very good explanation, really helped me out!

[@AbhishekYadav-ni5ts]

Thank u very much...... This video helped me alot... Thank u 🙏🙏

[@TheUruz]

what if you end up having to compile two files with two implementations of, say, the add function?

[@gvega6227]

Are there any alternatives to this? I have tried several times and enterin g++ -o main.exe main.cpp includes/calculations.cpp into the terminal doesn't seem to do anything.

[@gvega6227]

specifically, the error is: C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/13.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\Gabe\AppData\Local\Temp\ccVkqsFx.o:main.cpp:(.text+0x18): undefined reference to `add(int, int)' collect2.exe: error: ld returned 1 exit status

[@AyaGamal2010]

for this problem in VS code : The term 'g++' is not recognized as the name of a cmdlet, function,.... solution : kzbin.info/www/bejne/a5m2g5SNadiqqtEsi=zzxcLPnKLhjL0cP3

[@aashishpanchal3022]

Thankyou so much sir, really help full.

[@DrFerdy]

dude,you are using the different version of microsoft visual studio that i use,probably that "most" people use we use the community version

[@jersondereal]

Help🥲 The command isnt working, i keep getting this error, cc1plus.exe: fatal error: main.cpp: No such file or directory compilation terminated.

[@AyaGamal2010]

for this problem in VS code : The term 'g++' is not recognized as the name of a cmdlet, function,.... solution : kzbin.info/www/bejne/a5m2g5SNadiqqtEsi=zzxcLPnKLhjL0cP3

[@vukkulvar9769]

Why can't gcc implicitely fetch all the needed files? Why can't you declare what's made visible outside the .cpp file without using a .h file, but by using a "export" keyword for example?

[@AyaGamal2010]

for this problem in VS code : The term 'g++' is not recognized as the name of a cmdlet, function,.... solution : kzbin.info/www/bejne/a5m2g5SNadiqqtEsi=zzxcLPnKLhjL0cP3

[@juanjocg1870]

love it

[@junkdog505]

Gracias a tu video encontré la forma de ejecutar los headers no lo encuentro en otros videos se me hace muy pesado el visual studio 2019 ty

[@skaterfabi11]

Thx 4 your videos :)

[@Steezylegs_juri]

really well done thanks

[@killzann7757]

love it bro

[@antmoundsock1122]

i get 3 errors depending on my variables: 'x': identifier not found, 'y' undeclared identifier, and 'z': redefinition, multiple initialization

[@BunrithViwatthanak]

What is the keyboard?

[@Rita-og7cy]

wait you might have just saved my life

[@Rita-og7cy]

nope still not working

[@lal1th]

Okay, so I don't usually comment on videos but this annoyed the hell out of me so I am going to comment if someone else has the same issue If everything works up till the point where he types main.exe and then it just shows you an error message, make sure you are using command prompt as your terminal, or use the equivalent command in your terminal Great video tho! 👍 (edit: just some punctuation)

[@naheliegend5222]

But what if I have 100 of those header files and cpp files? Should I add all of them to the g++ command?

[@guigs4467]

#pragma once

[@Robin-gd8py]

Thank you so much.

[@Jonathan-ru9zl]

Hi! How come i have .cpp file that uses stdio.h library and uses printf function?

[@saadblabla]

I still don't get why you would use header files if you can use the cpp instead, you are not hiding your source code using h files the implementation in cpp files shows all the files there.

[@randomhuman5539]

You saved me thank you

[@byrussx]

great video

[@NeuralNine]

thanks :)

[@DepechLyot]

Greetings from russia! and thank you for teaching me!

[@casperongny802]

Hey, what is your intro? BGM

[@RenderDragon]

You should name your channel as Brainpods

[@alexsonic7]

bro everybody is asking about several includes, i think that can be achieved with a makefile

[@mrentp]

Isn't this working as interfaces ??

[@tips1483]

Can you livestream you coding some day :)

[@NeuralNine]

it's on my todo list. sooner or later I will do it :)

[@tips1483]

@@NeuralNine Ok thanks!

[@HousseinAlDroubi]

Good, welcome to you.

[@Sakapaka]

i didnt understand how the calculations.h had access to the calculations.cpp because u didnt inclue the cpp file in the header file

[@rouisaek]

It happens under the hood cuz of the naming conventions. all you need to know is your xxxx.cpp file that have the implementation of the logic must have a xxxx.h file with the exact name that acts like an interface for the users. Now inject the xxxx.h not the xxxx.cpp that must be private.

[@costantinoanea682]

🤩

[@catorlife]

gosh, why it's so difficult, too many perplexed frameworks you guys just need to switch to VS (purple one) and then you will see it much much easier, just "pragma once" and then everything is on the set

[@Hoxolotl]

so instead of including calculation.cpp you include calculation.h. And the only use for a header file is to make the code more readable by moving the logic back to a second file. Why does it feel like using a sledgehammer on a mosquito? As if back in the days when C was invented "readability" was on the menu. I bet there is a better reason why header files exist. I'll go look it up.

[@shahidashadan4104]

I'm currently using arduino IDE software,but when I'm trying to upload the coding,there are some error and it show a message 'no header files (.h) ' What should i do? Anyone help me please? I really need your help.

[@shahidashadan4104]

And if i not notice someone reply my comment,kindly dm me at instagram. Tq in advance Ig : nrlsy_hda

[@joaquins.a.2830]

In my case it only worked with include "calculations.cpp" or include "calculations.h". with include "includes/calculations.cpp or .h" i got an error.

[@ASHISHKUMAR-gh1uu]

After creation of main.exe Include your header file in calculation.cpp file i.e #include"calculation.h" And then in main.cpp makes changes of #include "Includes/calculation.h" After that in new terminal Write g++ -o main.exe main.cpp Includes/calculation.cpp Hit enter And then write main.exe It will give result

[@dankcherries22]

@@ASHISHKUMAR-gh1uu He has his calculations.h file in a folder called includes, so "includes/calculations.h" is the path to the calculations.h file. If your calculations.h file is in the same folder as your main.cpp file you only need to have #include "calculations.h"

[@thechosenone7465]

thanks you❤

[@uhhuh5934]

Thanks

[@beauMax]

Classes?

[@Rhapsolin]

for me it wasn't #include "includes/calculations.cpp" it was just #include "calculations.cpp"

[@chabaned4743]

thanks

[@petermuller161]

I read that these function signatures have been called function prototypes. Forgive me I am learning.

[@tecfy028]

I think this are 2 different names for the same thing

[@mengjingyang4596]

why the last step is to type main.exe

[@badmonkey2468]

very good

[@gabriellebtrc]

5:58 2:43

[@Devansh__Pandey2409]

includes is not working for me

[@tips1483]

3rd