Pointer types, pointer arithmetic, void pointers

[@darkseeven]

your 10 minutes of video is more valuable than 6 hours of my teacher lectures:))) Thumbs up

[@mycodeschool]

Hi bmgag19, You will have to acknowledge that people from different geographies would pronounce things differently. Even in a machine, Natural language processing does not happen through rules, it happens through statistical learning by training the machine on different accents. Larger and diverse the corpus, better is the natural language processing engine. In fact, standards and not strictly enforced in pronunciation. The most we can promise is being close to it. :)

[@surajborekar2869]

Where are you sir?

[@Zeus-fe3we]

@@surajborekar2869 I am sorry to say that this guy no longer in this world I exactly don't know what happened but he died he's IIt student. May god give peace to his soul. RIP... BEST TEACHER

[@krusher9977]

​@@Zeus-fe3we big if true

[@Prabhatkumar-ht3se]

@@Zeus-fe3we he is currently working in google

[@juhanhossain7594]

@@Prabhatkumar-ht3se no he died . around 4 years ago by a car accident :( his popular name is" humblefool ".Google it

[@SyarifZapata]

one of the best teacher on internet. Thank you so much! can i buy you a coffee?

[@mohamedessawey4192]

@@shailendrakumar3130 sad!!

[@jasonzhang2643]

@@shailendrakumar3130 Just learned about this. I watched many of his videos and get a good job at a tech company. www.freecodecamp.org/news/mycodeschool-youtube-channel-history/

[@ShivamSharma-rq9ne]

That means a dead person is teaching us. F and rip

[@tapasvipatell]

@@shailendrakumar3130 who is he? how he died?

[@Simple_OG]

​@@tapasvipatell I think car accident

[@msjaxp]

The most amazing lectures I have ever seen The pointers were a myth for me since I was a student from 10 years ago

[@parthvatsal1]

I studied computer science in 2007 and I hated it because I never understood it. I wish your tutorials were there when I was a student. Maybe I would still have been in this domain.

[@AbhishekKumar-yj3ix]

its never too late for a computer science student !!

[@omayma4921]

never too late

[@wardenofthenorth-w5d]

ntl man. hang in there!

[@LousyPainter]

Your awesome! What else can I say? You are a great teacher! Great teachers are a rare breed. Thank your Mother for giving birth to you! She deserves it.

[@shivamverma9447]

Absolute masterclass displayed in these lectures. Made everyone's life easy.....

[@vikku_19]

In c++, We have to typecast it back to integer otherwise it gives some weird output. int a=1025; int *p; p=&a; cout

[@akshatmishra5786]

Thanks, I was having a problem too (sorted now)

[@carlpittenger]

yep, he was getting 1 printed out because he was using the %d format specifier in the printf call which automatically converts the char to an int.

[@kushagrasahu8289]

Clearly the best available lectures on KZbin for pointers. Hand down🙌🙌

[@mycodeschool]

Your feedback is taken. Thanks a lot !

[@fangqingyu3158]

Most in-depth videos on pointers I've ever watched! Thank you for clearing the mist for me :)

[@chaynhungkhongkhet833]

I'm here,I'm sophomore .Thank you so much for creating lectures like this. I heard stories of Animesh and Harsha .The value that you create remains forever.Thank you !!!!

[@leoonair3598]

The way you explain things are great. Like your voice, pace and using examples to give in-depth knowledge. Keep it going. Serving millions. Thank You.

[@Slacker4o]

Finally. I think i understand pointers

[@mycodeschool]

Hi Tushar, We just added two videos on pointers and multi-dimensional arrays in this playlist. Please go through them. They will help.

[@mycodeschool]

Jose, Finally , we have the merge sort video :)

[@hitikagahalot4549]

No one is better than you sir, you are made for this. We want you back sir.

[@stefanspinu8784]

Dude, your tutorials are simply amazing! You totally changed my perspective about pointers - I'm so excited about the next videos that I'm going to watch today. Are you a teacher professionally?

[@ly4422]

You are a gift from the CS heavens! Thank You, your playlist saved my future!!

[@mycodeschool]

Congrats Hani !! You get a Kudos !! :)

[@FernandoBasso]

sizeof is an operator, not a function. Great videos. I'm learning a lot from them. Thanks a lot and keep up the amazing work.

[@mycodeschool]

Thanks Loveuala, We will be adding more lessons in this series soon. Please stay tuned.

[@thenishanth420]

You are definitely the best professor in the field of C/C++. Salute to you :)

[@Phantom1037]

I don't know how to thank you for the great explanation. You dive very deep to explain the concept clearly. Thanks a lot.

[@aventador1049]

One of the best on KZbin..

[@omarfarouk2080]

your English accent is clear and good, sir. Thank you for offering easy explanations

[@yashtailor1543]

You don't know how much happiness you have given to us ❤, thanks man ❤❤❤❤❤❤

[@amizan8653]

I really like your videos man, you go deep in understanding of what's going on while still keeping things really simple.

[@herohera3497]

i like ur name

[@mycodeschool]

Because there is no information about the data type with a generic pointer. Depending upon the data type, different logic will be applied to decode the value. For example, char is only 1 byte, int is 4 bytes (typically) but its encoding in binary is different from double which is also 4 bytes. SO starting the address how many bytes should be looked at and how it should be interpreted depends upon the type.

[@Brianmongo]

Finally.. hands down the best explanation

[@codestorywithMIK]

I think this is the best video on pointers. Thanks a lottttttttttttttttttttttttttttttttttttttttttttttttt.

[@thestarinthesky_]

You are by far the best teachers! I have learned a lot. I wish you could continue making more videos!

[@thecuriousone12]

You are great in explaining! What at school seemed a myth, you explained it very clearly! Thank you so much, this will help me so much on my exam next Wednesday.

[@bakxodgamer7607]

thnx for appreciation but alas he is no more

[@VIKASHKUMAR-qt7pk]

while(true) { cout

[@shubhamraj2835]

my computer crashed because of this code infinite loop

[@magdam3961]

Amazing explanation! Everything is very understanble and clear especially for people without any programming experience!

[@snehchauhan8507]

The best video on pointers with all information conveyed in the series. 😇 Thank you so much 😀

[@thomasscream4179]

Man you have real teaching talent

[@masterchef8671]

ur videos on pointers so far are so good !! Explaining in such a way that all topics are touched ..Thanks a lot for ur efforts, it has definitely paid off...Recommending this video for all my friends :)

[@sa34898]

Thank you so much I understood how a variable which is declared is stored in memory in binary form. I have been wanting to know this since I started learning C. Never delete this video. Thanks very much again!

[@allenllewellynkra]

This video alone was more valuable than my university CS course

[@mycodeschool]

Thanks Jose !! You are never too "demanding" :) Merge sort video is promised to you. However, we want to move on with lessons in a series , so we would like to do a whole playlist on sorting algorithms starting from bubble sort and selection sort till quick sort. It will take some time to script and shoot videos. Please send an email to [e-mail] and we will be able to help you offline till the time we do not have lessons on sorting. Thanks again for your kind words.

[@ShopperPlug]

Excellent explanation. Spectacular video series in pointers for pure C.

[@userhdza2248]

you are really a great teacher short videos . examples . explaining the whole cycle as a unit what we see and what computer see at same time

[@gnzeu4tpns91]

this is great. you are good at explaining "complicated or over complicated" subject

[@melodiegauthier]

thank you thank you thank you! (did I say thank you?) :)

[@mycodeschool]

You are most welcome melodie gauthier :)

[@trilecao9014]

This is the most fundamental lesson of pointer to be learned in C.

[@mycodeschool]

Thanks Jackie :)

[@ibrahimgudratli6345]

Hello. I have a question. 07:11 you wrote printf("%d", p); is it correct? If we want to know address we should use "%p". I think that the number which you got from this, is not an address. Maybe it is just garbage value.

[@ibrahimgudratli6345]

I understood :D

[@shivamthaman7081]

i wish u were teaching me in clg. such a great explanation ; deep,relavant and clear. thanks a ton sir. i avoided ques using pointers as they made me nervous but now i'm quite confident about it.

[@ganshi1]

Brilliant concept clarity...Well done sir

[@gemix3858]

No words, only claps for you ! Thanks Alot, Man !

[@kritangnasingh5934]

Your videos are very easy to understand.

[@jaskiratsingh2157]

which IDE are you using ..

[@AbhijatBiswas]

Loved the part where you type cast to the char pointer. Didn't know that! Cheers!

[@AfhamAdian]

Best Video on The PLatform

[@nikolajkapa2283]

Great depth and quality of material.

[@FMUSAADTP]

you are very helpful thank you ! i'm learning a lot From this Channel keep Do it Awesome !! :)

[@mycodeschool]

Yeah sure ! we will be adding more videos in this playlist. Stay tuned by subscribing to the channel :)

[@DanielDeakin]

very helpful, made pointers actually make sense

[@debadritadutta2308]

Just a small doubt of a beginner Im sorry if its silly....If we typecasted to char why did we use %d and not %c while printing?

[@aptitudepointiit-bhu5358]

Here our motive is not to print any character value, we are just checking, what exactly happens if any character pointer points to an integer value, instead of an integer pointer. So, we got to know that the character pointer will only read the value at 1 byte, and thus ignore the remaining 3 bytes, and returns an incorrect value, unlike the integer pointer that takes all the 4 bytes into consideration. This is why we use the pointer of the same data type as the value, it is pointing to. Hopefully, this is helpful. ✌

[@mostafayasin1]

Thank you very much , those tutorials helped me in my job interview :)

[@naeroforceofficial]

I really like those tutorials, you repeat some informations and by doing that i always remember all things :)

[@oshogarg5215]

Awesome video.. No one explained like this ....

[@pradhoshss8281]

Your lecturers are awesome:)

[@sharathnb]

U r super amazing, fantastic, fantabulous, superb, running out of adjectives. Trust me, I've been looking for this type of tutorial, concepts with simple examples.

[@amitkumarbalaantu845]

First of all, thanks for making such amazing tutorials. I have a question on 10:28. You said de-referencing and arithmetic operations are not possible in void pointers. But I tried to do arithmetic operation in my void pointer by adding 1 with it. The code compiled and p0+1 gave output value 1 more than p0. I stored a integer pointer value in p0.

[@jamiewrithe8367]

very concise and excellent examples. Thank you!

[@alijumc]

Thanks for the clear explanation. I watch similar stuff many times but fails at some point because some detail was not deeply presented. There is some level of sympathy in your explanation that covers the bottom levels and the time span, that fit even the most poisoned brain from the past aka college, middle school, and other learning platforms.

[@LilTea1000]

Thank you very much,you have an incredible talent,you are so good at explaining.

[@srinathkumar1452]

Excellent series of videos!

[@kiku_to_herself]

Summary - int a=10; int *p=&a; p is pointer to integer &a and p will give the address of a variable (suppose its 2000) *p(value at p) and a will give the value of a that is 10. (p+1) will give 2004 as output coz will give the next address which will be after 4 bytes or 2 bytes , depending how much memory integer is taking , you can find it by using - sizeof(int) *(p+1) will give the value stored at next 4 bytes which is mostly garbage value Pointer are strong type because we not only store address but use them for dereferencing as well MSB is sign bit int *p; char *po; po=(char*)p; //This is called typecasting Void pointer- void *pi; pi=p; We can only print address Can't dereference or perform arithmetic operation

[@mycodeschool]

Thanks Ooatii :)

[@giorgos6576]

There are no words to describe your word . The least i can say is amazing . The only thing that u should have mentioned in that if p is pointer then printf(" %d %p , p , p); prints first the adress in decimal , and the second in hexadecimal .

[@lakhdeepsingh5883]

Indeed the explaination presented are easy to understand

[@hupa1a]

Great series man!

[@leixun]

*My takeaways:* General pointer type - void, it can't be de-referenced and do any pointer arithmetic 9:25

[@jlecampana]

Great video! This is slightly out of topic, but, Could you please do the Merge Sort video Next? I may sound too 'demanding' now, but... In case you do said video, Could you please show us the recursive version? (Maybe use the CLRS book Pseudo-code to base off your real C++ Implementation?) Thanks in advance! and... I'm truly enjoying every minute of all the videos you upload, Good job!

[@mycodeschool]

No you need to use asterisk. Its like char and char* are two different data types.

[@GeorgeRodes1968]

Excellent work! Much appreciated.

[@raphaelmoreira1850]

Sir, you are a genius.

[@vishaljhaveri7565]

I love you man! You are a freakin' awesome teacher!

[@ivandrofly]

Thank you so much ;)... best video about pointer I found so far

[@DolaLado]

Excellent explanation, thank you.

[@NinjaMan986]

Can the lookup table not tell the type that is stored at that adress? A valuable lesson you gave here.

[@aadishdeshpande1343]

4:46 - Correction, sizeof() is not a function it's an operator :)

[@fanusgebrehiwet6286]

Aadish Deshpande operators are functions

[@ashutoshdwivedi3976]

For C++, you have to cast again in integer while printing; cout

[@rohitvishwakarma9261]

thanks bro

[@rohitvishwakarma9261]

but bro why I'm not getting (int*)*(p0+1) value 4

[@HumbertoFioravanteFerro]

Nice and concise explanation. Thank you!

[@JackiePrime]

thanks for the videos, very concise and clear. Better than my university :(

[@hovhadovah]

Very informative video, thanks a lot! I didn't know how data types were stored in memory. Interesting stuff :)

[@fireinsidepower3648]

Seriously , this is great

[@swapnilchhatre5845]

Damn man! What explanation man! superb!

[@psawyer871]

Excellent tutorials!!

[@ozbjd]

I'm sorry, but I think there is a similar error in this video as there was in the previous video "working with pointers" regarding pointer arithmetic. Between 5:51 and 7:54 where you talk about printing the values of p, p+1, p0, and p0 + 1. What you are printing is the contents of those addresses, not the addresses themselves. The number of bytes difference between p and p +1 and p0 and p0 +1 will be determined by the type of machine and compiler you are using and is the number of bytes required to store a memory address on that computer. You can use the format printf("%p ", (void *)&p). You need to assign p+1 and p0+1 to variables to be able to print the addresses of p+1 and p0+1.

[@iljafjorovs]

This video made my day!!!

[@divyatunuguntla1472]

Such a good explanation i ever hear sir, and very simple teaching methods. I thought that pointers means tragedy but you solved that tragedy very easily :P ;) :)

[@supradipmondal609]

sir your videos are to good and too helpful for me.... and thank u soooooooo much.. i have seen other C videos but your videos are too understandable for me.... One thing i reqst to u tht please make some videos about funtions,,structrure and also file I/O... all C videos are there except tht..... i need it to learn...soo... thank u....

[@computerscience8795]

thank you for these amazing videos.

[@vikashsinha588]

Thank You for such a ease example .

[@gigachadkartik]

I learned so much from this video

[@CODINC]

Amazing tutorial!!! I finally got it!!!

[@AmanSingh-zj7im]

Is it important to typecast any pointer with * sign ...?? for ex : p0=(char *)p; p0=(char)p;// is this possible??