Pointers as function returns in C/C++

[@mycodeschool]

Hi Mustafa, Please watch the complete video. That's the whole point that has been explained in the video that you cannot return pointer to a local variable. I think because you knew the concept already and you have this opinion that one cannot learn programming on KZbin, you got angry and skipped at 9:00. :)

[@prankita107]

You are awesome . Make more videos and bless us please.

[@adityaojha2701]

Today everyone learns on KZbin and not only programing but everything. MyCodeSchool took initiative of making this highly valuable content during a time when people were using 2G. Then also your content quality is way better.

[@mycodeschool]

Yes, printf is a library function. So, a stack-frame will be allocated for printf also. Sorry, i did not show it in my simulation. stack frame is allocated corresponding to each call of a function. So, if there are multiple calls to printf in the same function. stack frame will be allocated and de-allocated multiple times corresponding to each call of printf.

[@everything9118]

This man is lit. U teach so well. I have been in touch with c since 4 years, still didn't know these things. U r awesome!

[@user-yg2gw4je8d]

This is an excellent series. In my view, your extended explanation/demonstration of pointers is especially good. Thank you so much for doing this.

[@gijimbo1337]

1st, I know this video was posted 6.5 years ago but good content is good content and is still valid today. What I'd like to add is that "delete ptr" should be used when we're done using it. After that, "ptr = nullptr" should also be used so we don't end up with a dangling pointer.

[@soham2732]

Hiiii I am from 2021 😂

[@KT22672]

2024 Still valid Still goated

[@shivamverma9447]

This holy and sacred video cleared all the concepts...............

[@amandeepsingh2314]

you are awesome... great tutorial.. its really helped me a lot. you are doing a great job.

[@vasanthidevipaneerselvam48]

Excellent explanation of pointers... No words to tell...now got clear idea of all concepts in pointers ...watch all videos on pointer

[@ozzyfromspace]

Wow, I don't know how you did that, but you made me understand. That's super hard to do lol 😅 You're amazing man, thank you!

[@samvaidya1987]

Every video has a ton of information. Very humbling. Thanks a ton!!

[@elementallobsterx]

Incredible explanation

[@rajdeepkhandelwal1653]

all I can say "Thank You for this pointer tutorial".(Awesome explanation)

[@mycodeschool]

Thanks Bharath !! yeah, may be i should always write a free. If you see program will anyway finish execution after print where we are using the pointer to access memory. But anyway, its a good practice to write free explicitly.

[@joshidikshya6183]

Could you please explain where should free() be placed? Writing free on main will create a segmentation fault.

[@satwaghole]

@kewlpint: Yes.printf() is considered as another function call and separate stack frame is allocated for it. Nice question. @mycodeschool: You r doing gr8 job boss.Go ahead..

[@ankukumar7874]

I don't have words to describe how excellent you are.

[@naboulsikhalid7763]

programming C at the best. Born to teach elegantly. Thank you

[@dogdutyascetic]

Simply brilliant. The explanation of using the heap as a way to pass values down the calling stack is brilliant.

[@1990idris]

thank you very much. i read some books about c, but your explanation is the best. because you explain step by step.

[@zarifahmed1024]

I just paused the video in the middle to say that you my brother you are awesommmeeeee!!!!! Take love

[@maheshrokade5]

Bro.... thank you so...much.. your teaching is awesome😊 , no one actually touch such concepts but..you did...

[@cajhdz]

Thank you very much, my mind was crashed because I didn't know the root cause of this behaviour You have a great! channel to learn from

[@anondoggo]

I never understood cs this well before. Thank you!

[@hamzaahmad9489]

Since your playlist tells almost everything a beginner needs to know about pointers . Kindly rename it with "All you need to know about pointers" . I couldn't find your video easily although it was much better than all videos I saw on pointers.

[@PrayingForYourWellBeing]

This guy is seriously amazing, no words to describe his ingenuity !!!

[@rugri]

Best explanation ever! Thanks

[@fyionyoutube]

At @6:40 time, you have compiled the code successfully, but in my compiler, it is having segmentation fault, as it is being a Darlington pointer. Please share your answer.

[@user-rt2fm4cp1]

Do you know how to correct this error ? I am also getting segmentation fault after writing exactly the same code in the video....You know any solution to it ?

[@conquerorcj26]

I watched from the first video in this playlist upto here in one watch..This playlist made me relise and gave a realaly good uunderstanding also cleared lotta doubts on a project i did using dynamic memory allocation.Thanks a lot

[@mycodeschool]

Thanks a lot :)

[@ZeriAi]

I've been watching at least one of your videos each day Thank you for your content

[@aloyrs]

This video basically explains why there is error when using pointers on the stack as data can be deallocated , however in when using pointers in the heap data has to be explicitly deallocated or overwritten using free() which is handled by the programmer, so there will be no accidental deallocation of data unlike in the stack

[@ShubhamSharma-qy8ti]

Great tutorial sir. I look forward to learning a lot from you.

[@pronoob4890]

This cleared my concept. Thanks a lot.🤗🤗🤗🤗

[@cankocak1068]

Great explanation! This video shows why we should return a pointer from the function using dynamic memory allocation.

[@sankarnampoothirikm3930]

wow cooooooooool i was serching this for days u r the only one who cleared my doubt (my doubt was about array returning) you r god

[@devesh5955it]

Rocking Dude :), The concept regarding Top to bottom and bottom to top of the stack is cristal clear... Thank a lot Bro :)

[@bharathslip9]

Excellent video demonstration about usage of pointers. Please release the memory which is dynamically allocated by Malloc in the heap.

[@clintonahong]

Actually it seems very fast to learn the concepts.Although i listen slowly with pause and play again and again thinking all about the int* add(int *a,int *b).Now i finally understand the underlying concepts .Thanks to mycodeschool for such valuable lectures .

[@sunandachowdhury1455]

Can you kindly explain why they used int *add? Don't we write the name of function at that place?

[@rohithbhandari7836]

You are just amazing. I have no words to say.Excellent teaching skills.

[@Protick1994]

Very nice brother, nice explanation. Thanks to you from bottom of my heart. Keep up the good work, best wishes

[@rashigupta1813]

Man! Thanks a ton. These videos are so easy to understand

[@hardikraj9469]

From where did you study these tehings? It would be really helpful if you could give the materials or the name of the books from where you studied the 'application memory'

[@saiyaswanthreddyleagala725]

Massive respect !!

[@joecort9890]

What a master I was struggling with a linked list, and I thought it was something due to some of this, and I was right. Thank u.

[@aptitudepointiit-bhu5358]

Amazing Explanation !! 💛

[@jdschlichting]

This was very easy to follow along with. Thanks!

[@arafamahmood]

u explain very nicely!thanx for the lesson

[@thestarinthesky_]

You are too amazing! you are extraordinary amazing! Google is lucky to have you. Wish you the best in the world! Thank you.

[@sairajdas6692]

Simply terrific explanation!!

[@muhammadnaveed7953]

Excellent demonstration on pointers and memory..

[@utkarshkathuria2931]

Hi, the code you showed in the video doesn't work

[@viithalbhat5640]

Amazing. Superb. Subtle. Love you.

[@sameerabanu329]

Thanks for your tutorial. It is helping me alot. Please start posting more videos.

[@alexanderschmidt8976]

best possible explained, THANK YOU!

[@SushrutKanetkar]

Excellent explanation man ! Thank you very very much !

[@vidyarthi3944]

Great explanation.❤❤❤❤❤❤❤❤❤❤❤💚❤💖💖💓

[@drnovice612ita]

Illuminating explanation

[@timoteisatmarean7391]

Subscribed because of this video. Thanks!

[@inderpreetsingh2658]

I had a doubt.. at 13:50 why did you remove return '&'c and wrote return c; what would have happened if we still used & operator?

[@mohamedamrali1993]

I went down in the comment section, just to check if someone else had the same thought. I am thinking it's probably just a style thing... not sure if there was a real purpose for it. I am trying to think of it carefully.... If any other experienced coder out there could confirm with us, it would be highly appreciated!! Thanks

[@aminemarzouki794]

+MoHAMED Ali No It's not a style thing. At the first time, he wrote INT c = *a + *b; so if we need to return the ADDRESS of c we must precede it with &. That's why he wrote return &c; After that, he changed the variable c of type int, to a pointer to int which is int*. Now we have int *c = ... If you want to return the address of c, you simply return c, because c now is NOT an int, it is a pointer to int. So return c will return the address of integer c, if you did return &c however, you'll return the address of the pointer c ( int*** c).

[@Reflectives]

@@aminemarzouki794 I didn't go down to docs for that, but if I got it right "*c =" means put the result to this memory location. Otherwise it would go to the stack again

[@sandeepkumawat4982]

huhhh,,,,i got tired of writing positive feedback for this man in every video...but still i feel these appreciations are not much for his skills ^_^

[@shezijalal1774]

Awesome Explanation ! Thanks !

[@mycodeschool]

Thanks Dev !

[@rashmikiranpandit8962]

amazing as always!

[@garryharry1024]

Amazing tutorial! Clear as always...

[@vidyadherreddy2511]

Really nice videos..simple explanation to complex concepts

[@farhantanvir3073]

very nice explanation. Thank you.

[@MMABeijing]

that's amazing, I can not believe it. Thank you Coach

[@mayankverma5490]

Very valuable lesson......Thank you very much!!!!!!!

[@dwivedys]

Simply brilliant tutorial. I like the way you deliver your lecture. Would like to connect with you

[@sayantaniguha8519]

Watch till 6:42 for concept of *Function returning Pointer* according to *Pointer ppt for DSA KIIT Class* .

[@aleeibrahim8672]

Explained pretty well!! thanks :)

[@lukthi]

So clear to understand, thank u @mycodeschool

[@gitakujur6660]

Lucas Dantas . bulu

[@rmarinero]

Amazing! great refresher and tutorial

[@thenottakenone]

Really really good explanation

[@nalia20111]

Your videos helped me so much! Thank You !:D

[@mistersz]

Excellent Tutorial, Great Teacher, Thank you very much !

[@kunalpanchal7751]

Thank you for Blowing my mind.....

[@zacian4941]

you are a....LEGEND!

[@Anddosdd]

Exellent video,ive learnt alot my friend

[@nearriver8174]

nice! I really love this video

[@anchitbhushan6172]

Can we use static pointer to integer variables to store addresses??

[@vijaykumarreddyt3287]

Yes we can use...as static variables are stored in static segment...the addresses of variables in this segment is unchanged until the complete execution of programme

[@Naveen-ef2dg]

Worth of Time. kudos..!!!

[@ОлегТокмачев-в9ц]

Cool! Thanks shedding light on this topic. Bless you! :)

[@ramfattah211]

Thank you Harsha Suryanarayana AKA humblefool. RIP Legend.

[@EngWorld-nr2ww]

Explained so well

[@overclockinggames2419]

this was great sir , a learned a new thing

[@abhimanyumishra9455]

You are simply genius..

[@pranaysamrit8944]

Your videos are sooo awesome

[@yunustaliperol6912]

Firstly, this is the best video ever on this topic for sure...But I have a question : Why the function ADD returning the "c" instead of "&c"??? It is returning "c" but we are writing the address of "c" in to the *ptr in the stack??? This confused me a bit...

[@akshdeeprajawat9642]

Take a bow sir !!!!!!!

[@crazytech3519]

really great work sir...

[@youyiliu7556]

Good, better, the best!

[@manishthakur9797]

Great Explanation!

[@ranjithks7]

The PrintHelloWorld() function overwrittens the address of *c in Add() is aweful. Good to understand the behavior of Call Stack

[@zekininadresi]

IMO, this video is just amazing.

[@someinteresting5629]

Very clear. Thank you

[@cyborgdale]

At 3:42 this is pass-by-pointer, NOT pass-by-reference. In pass-by-reference, you would call just as you would in pass-by-value but the parameter list would dereference the variables using the dereference operator '&'. The received reference variable is then an 'alias' and can be used syntactically just like a local variable without having to dereference. Changing this variable however would have scope OUTSIDE of the function and therefore change the corresponding variable in main(). The difference is that you can do "pointer arithmetic" on pointers (changing the address pointed to) but not on references.

[@sarthakjoshi3797]

In C language, passing by reference can only and only be accomplished using pointers. I think what you mean when you say pass-by-reference using "int& x" as parameter in a function is pass-by-reference in C++, which is a new concept in C++, not present in C. So this mycodeschool guy is kinda right:)

[@cyborgdale]

Sarthak Joshi Actually what I meant to say was "pass-by-address" instead of "pass-by-pointer". I keep it straight in my head by "thinking" of it as "pass-by-pointer", even though that term is not correct. It helps me remember to use the dereferencing operator in the function parameter list and to dereference the variable in the function body, whereas pass-by-reference automatically dereferences. I should have used the proper term so, thanks for calling me out on it.

[@LimeriuxasLT]

excellent video, thanks!!!!!!

[@rakshitks7850]

excellent playlist

[@martingruscher7173]

Well explained, thanks a lot!

[@guledalprashanth]

Just awesome dude, thanks!