Pointers to Pointers in C/C++
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- čas přidán 19. 04. 2013
- See complete series on pointers in C / C++ here:
• Pointers in C/C++
In this lesson, we have described how we can create pointers to pointers and use them in our code.
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7 years and till I couldn't find a better tutorial than this.
yeh you right this man concepts end....
Yah!
Javidx9 has a really good tutorial on pointers. Consider watching it.
Way too much time taken to understand pointers. LOL
😂😂😂... So true...
Few days back i learned pointers in my c++ institute and i was confused about the concept, and now after watching this tutorial i can say i know what pointers are and how they are stored in a memory.
Thank you very much!!!!
Harpreet Singh Saini most welcome :)
Harpreet Singh Saini I
4 years after I completed my Graduate and watching it to revise my pointers concept and believe me, still can't find any better video than this.
Thanks Samir, for noticing. Yes, it should be 205. . I have added a note as correction.
how to dereference pointer to pointer using arrow operator
although i m in a reputed institution of engineering but your channel is above all educators ...
with no buttering and humbly praising that u are awesome educator and u have god gifted talent of teaching which is not possessed by many teachers ..
may u be blessed ..
Thanks Vaibhav ! Valid suggestion. I thought of doing so initially, but video was getting long and i thought of doing it in another lesson. Stay tuned and keep interacting. :)
Excellent video, clear and full explanation of the details. Pointers are one of the most important topics in C++ so it's a hassle when they don't explain properly in class. Thank you!
your diagrams are the only cause that pointer to pointer entered my brain properly :)
Amazing videos you have here. These topics have always been somewhat mysteries to me and I never bothered to learn them quite well. I highly appreciate your visual way of presenting things as you speak, it has helped me a lot. Thanks for the effort!
Sometimes, pointer variables may be holding an important information. If you know of linked list, there is a head pointer that stores the address of the first node. Now, lets say we declared this head as a local variable in main method and want to modify it in some other function. So,we can pass head by reference. Called function will receive a pointer to pointer. Let's say method reverses list. Signature will be void Reverse(Node** head);. *head will give access to "head" in main method.
Thanks allot sir ☺️
Pointers are quite confusing to me but you are making them seem easy. Great teacher.
The best ever description, hours of book confusion solved in your video, well done!
This was more useful than I had hoped it would be. Thank you so much
This is an excellent video. Ironically it explains the concept 100 times better than my university profs
Paul Lam ya broo totally agree with u
This is series has been really good so far. Pointers have been kicking my ass and I hope my confusion would be gone or greatly reduced by the time I'm done with this series
Got an exam tomorrow, been binge watching the playlist. So far so good.
Awesome . You're superb . I came here to brush up my knowledge on Data Structure and Pointers to prepare for ML interviews and I found this tutorial really helpful . Thanks a lot !
Thank you very much for the clarity of your explanations May God bless you.Please keep on helping people like us with clear explanations like this..
Thanks a lot sir ! It helped me a lot , never thaught pointers can be this much easy !
Amazing. The whole series is amazing. Finally, somebody has structured what I have kinda known about how pointers work. You are my personal hero now. You and Trisha Gee and some other nice people :)
You are sooo good.I never knew pointers could be this easy,thank you, I am surely going to recommend you to anyone who says pointers are tough.
dear mr mycodeschool-
another well done tutorial. thanks for all of these!!!
- C student
you mean mr animesh or mr late harsha.
@Govind yeah.he died in a car accident , was one of the best coders from india
you are a master dude... no comparison. you have so damn good understanding of all the concepts. salute mate.
One of the best channels for C/ C++, Thanks a lot
Thank you for your clear and concise mini lecture!
Tis' but a piece of cake with your clear explanation. My professor puts me to sleep in 0.00000025 seconds. Thank you very much!
At 5:40, shouldn't r have the value 205 instead of 215 at memory address 230? My reasoning is that since int*** r = &q; then r will have the value as the memory address of q which is 205.
It's typing mistake i think
I noticed the same.. I was looking for this observation in the comments to confirm. Peace of mind is back.😜
Your teaching method is far superior to all the other videos on youtube ive seen
This is really so much more helpful than the rest of those explaining Pointers. Till date you are the best💪 😌
Now,I've understood why cs dojo has recommended your channel.
Thank you Animesh..You're really helping lakhs of students
My professor taught me about pointers but I couldn’t understand his topic at all. I watched many of the videos but nothing helped me . Fortunately, I found your video and it clears all my doubts and I understand the pointers. Thanks very much 😊
Hi Magdy,
Structures were used in 'C' to create user defined complex data types with multiple fields. We cannot declare functions within structures in C. As we moved to C++, struct was kept as a keyword and can be used in an object oriented manner just like class. So struct in 'C' are different from struct in 'C++'. in C++, struct are just like classes. They can have functions inside them as well as other object oriented features like inheritance. contd to part 2...
At 7:52 minute, I guess value at r should be 205 instead of 215.
Exactly......it boggled my mind for a while..damn
I watch a lot of coding videos, yours are very high quality, thanks!
You are always welcome. Please post your question.
thnks a lot dude may god bless u :) u made me a pro in c
loved the video..now the concepts are crystal clear :) .thanks a lot!!
Thank you !
Also thank you for raising the audio level!
Excellent Work. Thanks a lot!
Your fabulous visual representation is the reason I understood pointer to pointer to pointer...
These are the best tutorials
Thank you for explaining this. I was struggling how int** p; was being used. I assume we can do this by creating a 2D pointer array now?
Thank you for your hard work.
your videos are great, better explained than our teacher :)
way of explanation is very good... Thanks a lot and keep uploading...!!! :)
I think my professors should watch your videos as well, so that they might actually know what they are talking about in the lectures.
Great video,really helped me clear my doubts,Thank you.. A playlist for this section would have been great..
Great explanation and visual, thank you!
thanks sir its been really helpful for grapsing the concept of pointer clearly....
All concepts are cleared!!...your videos are awesome.😇... thanks
now I can really say that I understood what those pointers mean .thank u so much !!!,couldn't explained it better .
Allah may Bless you Sir :) !!! All of your videos explained related topics very clearly
I really find this helpful in 2023, with the best basic to advance level explanation. Can anyone please tell me why the creators of this youtube channel are not posting new content on this channel?
You are wrong in part where you mentioned the content of 'r'
r should hold the address of 'q' which is 205.
The diagram should be changed.
Anup Amin yah bro correct r should hold an value of 205
@@pravinnaga3524 Dude that comment was 3 years old. Lol!
@@SwapnilSarkar 🤣🤣 🤣 🤣 🤣
It's a minor human error. Cut him some slack and appreciate his work brother.
@@SwapnilSarkar never to late to give a correct answer xD
You are awesome ....your lectures are mindblowing ..keep up the good works and thankssssssssssssssssssssss a lot for all these
sir u r best..i like ur video before watching,,,thank you so much sir.
Thanks for this video, man.
This is just phenomenal....
thank u sir....its really helpful......thank u once again.....
Thanks a lot for your tutorials, they are realy very good, keep it up.
Today i can say i have know something about pointers. By diagram and taking in account how addresses and values changes in each step is appreciating one. # thanks..mycodeschool
Great review. thank you
really useful . keep going mate .
Excellent explanation...thanks!
very clear and excellently done
Thanks for this lesson.....awesome sir.
very intuitive explanation thanks
You're a savior
This finally makes sense! XD
But these are one of the so many things where I am thinking about, when do we really need this.
Thanks for the good explanation!
You got it right buddy :)
Great video. I got this problem of understanding pointers and after your video, I am so clear of pointers to pointers now***_***
Really good explanation!!!
Thanks, strait to the point like how you question how you explain as well.
Do we have any tutorials of c++ as well? your tutorials are really helpful. if any please let me know
Great explanation.♥️♥️♥️♥️♥️♥️
thanks a lot sir for making it in such a cool way..
thank you so much , i finally understand pointers
contd... Here head in Reverse function is local and of type Node**, while head is main is local and of type Node*. Now, when main calls Reverse, it will call like Reverse(&head); So, Reverse will receive the address of head in a pointer to pointer and access head in main as *head. So, if it writes *head = something, it modifies the head in main method. Let me know if you still do not get it.
very well explained sir !
We can perform arithmetic addition on void pointer. I have checked in linux environment. Kindly look into this matter. Thank you
Best tutorial ever
Thanks a million!
Great video. thanks a lot!
You Guys are awesome!!
you are the best!!!!thank u!
nice explanation👍👍
great🌷
More videos on algorithm techniques and c++
Please.......
It will be probably usefull in recursion, recalling the pointer of a pointer... and etc.
very clear know.Thank u
Thanks!
today, i found these lectures and feeling glad.... thankyou for providing such lectures..
Nice turorial!
Thanks for the late night help :)
good explanation!
I think your name crystal because your teaching is crystal clear.
you're pretty gooood .. Thank you
One of the professor at my college taught linkedlist's insert node funtion using pointer to pointer concept like this void addbeg(node ** start,int x) ..can you please explain in short about it
thanks for the nice video and quick reply......
One suggestion, whenever You explain any topic pls explain it's significance and real time application like above....Human mind is greedy it doesn't catch the things until and unless it gets the reason of adopting them.....
At 7:33 r=205 not 215.....But great video dude!
You are redefining CS by having two different bytes at the same address (Minute: 0:52, memory address: 201/202). :D Apart from that, good video I guess! But remember kids: There is more! That stuff like a mapped kernel berfore of this any address range (and the kernel also isn't the first information in your mem), 32/64 bit, pages, ASLR and much more fun. :)