How to Include File Guards - Why to Include Fileguards in C or C++ Header Files

[@juanma_cello]

This is the best explanation someone could give me for this issue. Dude you're brilliant.

[@javxa]

Awesome explanation, step-by-step. Keep it up!

[@JamateyLP]

I searched a lot, and finally I found such a brilliant video. Thank you so much !!! This is one of the best explainations I have ever seen, slow (so that everyone can follow) and also showing everything so that everyone understands. THANKS!

[@Tweek5470]

I really loved that you went through the code step by step to show what the compiler was doing. That really helped, thanks!

[@DrudoPT]

So simple and straight to the point, truly a master at work!

[@TheArien]

9 years later and your video is still super relevant. You saved me from hours of useless work of trying to reconfigure my entire project structure.

[@shaneshort93]

Ah, thank you! I looked up numerous videos on this because the C++ Udemy course I am taking introduced File Guards and I couldn't understand why the alias in the file guards could be so arbitrary, but the way you explained it helped clear that up perfectly. Thank you for that!

[@lawrenegummy4736]

I love how you go through each line and explain what does what instead of what you should just do. It helps a lot when we understand why something is done instead of when you should just do it. You have a fan in me. Liked and Subbed, please do more videos.

[@shamarahshoup5253]

Instant subscribe. Explained this faster in 5 minutes than my professor in 3 weeks

[@kacperracing5798]

Hey Paul, I found your video much better than the one I got linked in my class. Very clear, very simple and very fast. Thanks for your help! thumbs up!

[@FastshortvideoEurop]

Hi Paul you have the best display screen than the other teachers well done

[@abdulsammadsaeed1199]

THANKS MAAN!!! I WAS STUCK ON THIS FOR A WHILE. YOUR EXPLANATION IS TOP NOTCH!

[@CarlosRedman3]

Bro that was clearest explanation I have ever heard. Great Job buddy . Thank you !

[@lorenzolonghi8697]

Most simple and clear definition, good job and thank you

[@elyrb1185]

This is so informative, explanations were very clear and it helped me a lot in my project, thanks, you got yourself a subscriber :D

[@Souffra]

Thank you, I finally got the explanation that I can understand. Bravo!!!

[@vutuan4308]

Thank you for explaning so clearly. I've had difficulties with this since i studied OOP with C++.

[@chrisr3947]

Thank you for this explanation of file guards. I am fairly new to c++ and this was straightforward and easy to understand!

[@Perceptionz_Sound]

Thanks for your content and Great video. Ive been learning c++ out of a text book for the past couple weeks and these videos are a great way to visualize and make those new connections of things i cant picture or wrap my head around while reading and writing notes.

[@kouko6727]

THANK YOU my cs professor didn't teach us about fireguards when we entered classes and inheritance and this redefinition was killing me for hours.

[@paraspatil1375]

Best explanation you would find on youtube..bro just don't give up on sharing such awesome content. Thankyou for precious knowledge you have shared with us

[@I_make_countless_mistakes]

Gosh!!! yours explanation is so clearr.

[@sirjohn6299]

Very clear and concise explanation, you have earned a subscriber!

[@hfe1833]

This is very useful for finding error in arduino library or debugging

[@ZapPack]

This is greatly helpful and I like that you explained what ALL of the terms mean and what exactly is happening (ex. why "ifndef" is named the way it is) 👍

[@areshaistg]

it's probably if not defined. there's also "ifdef", "if", "else", and "endif". i'm not sure about others but it's called preprocessor directives :)

[@김뉴비-f4z]

you are so genius you make me understanding Conditonal Compilation

[@dansalvador5071]

I wasn`t planning to write a comment but bro thats awesome. thanks for the explanation.

[@clawchette2622]

Thank you so much! You just saved my project, you're my hero :p

[@filippocucina7001]

The Best Explanation ever!

[@KachraSethisLive]

Thanks a lot this help me a lot i am trying to fix this issue from 36 hours but now it's fixed thankyou so much

[@joevz8758]

Thanks for explaining every tid bit, this is rarely done in tutorials, Thanks!

[@vaibhavpaliwal7754]

BEST EXPLANATION EVER!!!!!

[@Travelling_turtle07]

Thanksss, simple and straightforward

[@SuperLuxen]

Exactly what I needed to know, thank's man!

[@hiteshsinha7210]

thank this is the best explanation I have found.

[@Crochetmagicc]

this was a good explanation paul.

[@peter_castle]

This videos helped a lot! Subscribed and will binge watch

[@mrx-qi8th]

Thank u thank u thank u Just cant thank you enought I learned something valuable and Managed to solve my problem Just subscribed

[@zinhlekeswa5748]

Great explanation. Thank you Paul!!!😁

[@JonCianci12]

Perfect this is just what I was looking for!!

[@jacobes5084]

Actually such a super helpful video thank you so much, what a 🐐

[@achrafBadiry]

Brilliant. I just had a problem understanding the "#endif" directive. thank you

[@emanuelnolasco3745]

I am dummie at C++ language and this was one of the best explanation I have seen. I just have one doubt, What is the meaning of "a.out" in the time 5:15? I don´t get it

[@sivaramakrishnachitithoti839]

Very good explanation... well explained with good example scenario..

[@ayoubdkhissi]

Very clear explanation! thanks

[@amurkhandzagkoev1842]

I love it! Cool explanation!

[@NeelSandellISAWESOME]

Thank you so much. This really cleared things up for me.

[@voidenth]

brilliantly explained

[@jaakob1128]

Good tutorial! Keep up the good work!

[@intros1854]

This tutorial is pretty clear! Thanks.

[@stargazer2350]

This is really great. Thank you Paul.

[@MsGrooveOn]

You should note about another approach (#pragma once)

[@PaulProgramming]

Kirugan p Yes, that's a great idea. Thanks for the suggestion!

[@lawrenegummy4736]

(#pragma once) is not an original component of C++, as such it may work properly on some compilers but it may not work with some. Traditional Header guards will however safely compile in most if not all C++ compilers.

[@Hamstray]

the right approach is: do not nest includes

[@sylvesteruchia5263]

We don't use pragma once in this house . Standard c++ instructions only .

[@henrikstaaf3293]

My god you are a good teacher my friend!

[@henryharrison608]

Why are them fileguards in uppercase , what if the class was declared in uppercase

[@zkkvfvfv5117]

simple and straight to the point. thank you

[@poggers69-o3s]

excellent explanation

[@mkhadka123]

Nice and Easy, awesome video!

[@justapasserby773]

youre a life saver man

[@moinaction]

Best explanation ever!

[@QuangHungNguyen-n2w]

Best explanation. Thanks

[@thekiwininja99]

This was so helpful, thank you!!

[@homamis639]

Excellent Explanation!

[@shaswat_292]

Crisp and Informative. Thanks

[@cesarcalderon2499]

Thanks man i was having a hard time understanding it perfect thank you

[@gaskomusic]

Such a great explanation. Thanks!

[@mickballard7400]

Well explained Paul.

[@rdxrdx1792]

Excellent exaplaination

[@TViener]

Just subbed. Thanks for clearing this up for me!

[@jokar_2541]

ah man thanks a lot it's been days since i am tried to find a solution to this problem

[@TheDrewfuss]

Thanks for that. Very clear and quick.

[@resolvedman]

U SAVE MY LIFE BRO!!!!!!!

[@gauravpuri8716]

Nice Explaination!!!

[@kv6257]

Thanks a lot , you explane me very good how to use header files and with g++ tool. Thanks !

[@LukasanaTK]

explained it very well, subbed.

[@Cutrexxx]

very good explaination. Can you pls tell me, for what are header files exactly?

[@padmakumarnxt]

Outstanding tutorial!!.. Subscribed... :)

[@Fun-io9kv]

Good explanation thanks

[@muezapervaiz7163]

very well explained!

[@dctsdev]

is there a usecase where you would have multiple Fileguards and name them differently in the same file?

[@deathtoy101]

when you define file guards does it always have to be in capital letters?

[@grabbenskarve3518]

Try and see if you get an error.

[@Avdheshkumar-kv5fz]

just a bigggg..THANK YOU 😇

[@xdigitalmondx2]

Great explanation! thank you.

[@ednilsonalveslomazi8501]

man, thank you so much! But i have one question: In inclusion of standard libraries (...) how can i wrapper those includes to avoid redeclaration? Im creating a library, so, i dont know what the user will include in his application.

[@MAsif-sz9md]

Thank you soo much ❤❤keep it up

[@muhammadabumadeghem9675]

you just give us a wonderfull answer . Thx

[@ihateandreykrasnokutsky]

In Visual Studio, when you create a header file, there's an automatically created 1st line "#pragma once". As I understand, it serves the same purpose, but requires just 1 line of code.

[@avartation]

thanks a lot man !!! helped me a lot

[@Drogny]

Great video, thanks!!

[@metaverseclub5265]

brilliant video. Thank you

[@gabriellegal4496]

nice explanation

[@bevedel]

thanks for the great explanation

[@charity4613]

this video is amazing. thank you so much

[@shoaibramjaun]

what editor r u using?

[@moardub]

Thank you for this video I appreciate this a lot.

[@erickarias7619]

Good day . . . Hello ... How are you? You can include files with extensions .hpp and .cpp Can you do it in the MacOS IDE which is Xcode and run it through the terminal?

[@justcurious1940]

Thanks Paul.

[@PattysLab]

well explained!

[@MrHighpour]

Thank you so much! This helped!

[@moazelsawaf2000]

Thanks a lot sir

[@joeydicastro]

Awesome Paul.

[@funkykong9001]

Couldn't compilers automatically detect this case and just ignore the repeat include?