This lecture makes me unbelievably happy. Richard's explanation of pointers is simply brilliant. He then performs some hilarious magic tricks and even rewards his students with 256 Mars bars. This is amazing!
For those here in 2023, hit the like button😅😅😅... I totally love this Professor's passion. He made Pointers absolutely look easy peasy. Thank you Professor Richard
WILLIAM such a good question 17:45 . I was searching for hours on internet WHY,WHY,WHY should we use pointers instead of normal variables. Mr.Richard is an amazing teacher
Wow this guy is genuinely interested in teaching, he was so good that I, who has a hard time focusing in a real class, sat in front of my laptop and watched it all in one setting with focus. Wish more professors were like him.
ur awsome..non of my teachers are like u..they never teach us like this...they just gives me power point slides and say me to do everything...this is very helpful to me...thank u so much..
Had the pleasure of meeting and attending lectures by Richard Buckland at UNSW. He is a legend and a brilliant, well loved lecturer. An asset to the university.
Oh darn, when I see proffessors like this Im sad that theres not more of them like this one, great study, fun explaining of things, and compairing things from everyday use with virtual things. That was a nice hour of great education!
Incredible! I spent last few days trying to understand pointers and this video explained it so beautifully. He not only explained what pointers are but also why do we need it.
More teachers like this guy needed for sure. Things get complicated when ya look at stuff like int **p1 / array of pointers / pointer to an array of x / function pointers, etc... list goes on.
Watched the magic tricks at the end out of respect for quality lesson -- ended up learning another lesson. Thanks for making this -- it was really really helpful.
Wow. I've been looking everywhere for a good pointer (pun intended) to pointers, and this by far has to be the best. Cleared up everything I was unsure of. Amazing lecturer!
Just loved it...understood every bit of pointers..undoubtedly the best professor ever. Please don't stop the good work and keep on uploading his lectures..we'd be really grateful to you!!
Wow.... That's a beautiful lecture that surely removed all my doubts about pointer... And the guy makes things quite simple and easier to understand... Great job Sir...
ok i'l admit i thought i was done for in coding C. discourage and unmotivated because no one could really teach me well and i tried all sorts of tricks and tips to help me learn so i wouldn't be a burden to anyone, but after seeing this vid about 1 to 2 hr later i fully understand the subject that cause me to drop my class because it was too heavy in use. now im confident that i will ace my class up coming semester thank you his teaching style make you understand it perfectly.
I finally understood how can I use pointers, great lesson! (also, the teacher is so sweet c: doing magic tricks and bringing presents hahaha aww) thanks for uploading this!
14:53 This example is enlightening. Thinking about it will teach you a bit about how C compilers usually work. They usually have a notion of 'lvalues' (expressions that can appear on the left hand side of the assignment operator) and 'rvalues' (expressions that can't). In his example (&&&***x), we'd have to assume that x is at least an n-fold pointer (so that we can dereference it at least three times). We can then apply the reference (&) operator once to get the address of this value, but the second use of & is where it already goes wrong. At that point, we're trying to get the address of an rvalue - something that doesn't live at a memory address, but is just an expression floating around ready to be used. If you try it in C, it won't even compile. He suggests trying the other way around (***&&&x), but this has the same problem at the second use of &. One way to do something that WILL work is to try declaring x and then successively declaring pointers to x, pointers to this pointer, and so on. If you do this, you can successfully dereference the final pointer three times to get back x. TLDR: any occurrence of '&&' is going to fail.
I feel exactly the same way, I studied computer science @ University of Hertfordshire. Complete SHAM, no C taught what so ever. All I learned was JAVA. Working as a Telecoms Engineer in embedded development. I find my self struggling, however this video cleared pointers up for me Thanks you Sir
A simple explanation of pointers. int* creates a pointer variable which can store the address of another integer. if we say int* a, a is now ready store the address of int b. To get the address of variable b, we say &b. So now we can say a = &b; . We should also remember that a also has an address and can be referred to by saying &a. *a returns the value stored at the address stored in a. That is b. Lol!
I have not touched java in a while. a should return the address and *a should give the value stored at that address if my understanding of pointers is still intact.
actually pointers is easy.. what make its hard is,ppl always wonder why we learn it thank you richard for clearing this up basically pointers are use to overcoming scoping limitation
what an enthusiastic performance! you can see he's doing it with passion and is having fun. An excellent teacher. :) And also thanks a lot! I've always felt that the use of * was inconsistent in C, thought that it was different when used in declarations compared to the rest of the program - until that great explanation! :))
I'm confused at 29:00 if we pass the address of x and y isn't task expecting the address p1 and p2? Why do we write the argument list as value int *p1 and int *p2?
i like this teacher's passion. helps learning.
i finally get pointers
This last hour watching this video was the best hour of education I had in years ! Although I previously knew about pointers, I didn't miss a second.
This guy really knows how to teach. Out of all the videos I've watched about pointers, this one clarified the concept at a fundamental level.
You are the best professor in the WORLD. Thank you for sharing video on youtube.
This lecture makes me unbelievably happy. Richard's explanation of pointers is simply brilliant. He then performs some hilarious magic tricks and even rewards his students with 256 Mars bars. This is amazing!
Nothing between these walls ever leaves this walls, loved your confidence sir.
Totally gonna watch his lectures instead of ones that I can listen on my university, cause this guy's explaination skill rocks!
For those here in 2023, hit the like button😅😅😅... I totally love this Professor's passion. He made Pointers absolutely look easy peasy. Thank you Professor Richard
why lawyers learn C🙃
@@justcurious1940 because lawyers have to know a bit of everything 😂😂😂
@@big_lawyer make sense
I wish my professor was this enthusiastic!
WILLIAM such a good question 17:45 . I was searching for hours on internet WHY,WHY,WHY should we use pointers instead of normal variables. Mr.Richard is an amazing teacher
Wow this guy is genuinely interested in teaching, he was so good that I, who has a hard time focusing in a real class, sat in front of my laptop and watched it all in one setting with focus. Wish more professors were like him.
Finally understood pointers !! Best lecture ever. Truly educational.
Jump to 4:18 to go right to the pointer discussion.
But you'll miss out on the best part
thank u
Fortunately I've started to read the comments while watching the video. Thx man
ur awsome..non of my teachers are like u..they never teach us like this...they just gives me power point slides and say me to do everything...this is very helpful to me...thank u so much..
Had the pleasure of meeting and attending lectures by Richard Buckland at UNSW. He is a legend and a brilliant, well loved lecturer. An asset to the university.
note to self: x is actually )( and & is actually 8
or gamma
Hope he hasn’t started another sars equivalent
Hunh, how uh, serendipitous
Watching this video in quarantine
Joke didn’t age well
Oh darn, when I see proffessors like this Im sad that theres not more of them like this one, great study, fun explaining of things, and compairing things from everyday use with virtual things. That was a nice hour of great education!
Wow, months of studying c and c++ = 0 understanding of pointers.
48 minutes of this guys lecture and I can use them with ease.
Excellent way of teaching... Not just pointers.. but infact anything for that matter!
Incredible! I spent last few days trying to understand pointers and this video explained it so beautifully. He not only explained what pointers are but also why do we need it.
More teachers like this guy needed for sure. Things get complicated when ya look at stuff like int **p1 / array of pointers / pointer to an array of x / function pointers, etc... list goes on.
Watched the magic tricks at the end out of respect for quality lesson -- ended up learning another lesson. Thanks for making this -- it was really really helpful.
Wow. I've been looking everywhere for a good pointer (pun intended) to pointers, and this by far has to be the best. Cleared up everything I was unsure of. Amazing lecturer!
Just loved it...understood every bit of pointers..undoubtedly the best professor ever. Please don't stop the good work and keep on uploading his lectures..we'd be really grateful to you!!
Like the fifth video I've looked up, this one has taught me everything i could want to know at this stage and more. This guy 's a great teacher!
Amazing lecturer, some people are born to be teachers
Wow.... That's a beautiful lecture that surely removed all my doubts about pointer... And the guy makes things quite simple and easier to understand... Great job Sir...
this teacher is a gifted one.
one of the best explanations I have seen about pointers to pointers (the crazy exam question example).
this guy is a top class lecturer!
This was extremely helpful. Always nice to have that crazy teacher liven things up.
what a lecture!!!!!!!! SO MUCH DEDICATED IN THEIR WORK HOPE U KEEP UP THE GOOD JOB:)
BEST EDUCATIONAL VIDEO I HAVE SEEN
BEST LECTURER I HAVE SEEN
AMAZING VIDEO
AMAZING MAN
10/10
THANK YOU SO MUCH
ok i'l admit i thought i was done for in coding C. discourage and unmotivated because no one could really teach me well and i tried all sorts of tricks and tips to help me learn so i wouldn't be a burden to anyone, but after seeing this vid about 1 to 2 hr later i fully understand the subject that cause me to drop my class because it was too heavy in use. now im confident that i will ace my class up coming semester thank you his teaching style make you understand it perfectly.
"In other languages, [scoffs] you write like this: p1 is a pointer to int, but in C we write it like this: star-p is an int." Brilliant!
This is way clearer than the lecture I had today about pointers.
I finally understood how can I use pointers, great lesson!
(also, the teacher is so sweet c: doing magic tricks and bringing presents hahaha aww)
thanks for uploading this!
can't unsee the John Green in you :D Thank you so much for your clear expression of the pointers and thank you for your great passion!
This is the best professor I've seen so far! And I've seen a lot. I'm 35 and still studying, so go figure it :)))
I wish I had him as a professor. This one video has helped me understand pointers than prior professors or textbooks.
Holy shit this is useful. I wish my teachers were as engaged in the subject as this guy is.
Great stuff! Our class didn't go into the usefulness of it and now it makes SOO much more sense. Thanks!
14:53 This example is enlightening. Thinking about it will teach you a bit about how C compilers usually work. They usually have a notion of 'lvalues' (expressions that can appear on the left hand side of the assignment operator) and 'rvalues' (expressions that can't). In his example (&&&***x), we'd have to assume that x is at least an n-fold pointer (so that we can dereference it at least three times). We can then apply the reference (&) operator once to get the address of this value, but the second use of & is where it already goes wrong. At that point, we're trying to get the address of an rvalue - something that doesn't live at a memory address, but is just an expression floating around ready to be used. If you try it in C, it won't even compile. He suggests trying the other way around (***&&&x), but this has the same problem at the second use of &. One way to do something that WILL work is to try declaring x and then successively declaring pointers to x, pointers to this pointer, and so on. If you do this, you can successfully dereference the final pointer three times to get back x. TLDR: any occurrence of '&&' is going to fail.
i love professor voice and his teaching style.
I love this guy's passion and energy. I have been trying to get my head around pointers for ages and just avoided them. Now I understand!
Finally I understand pointers! This is a very good teacher.
I really really really enjoyed this class, He's like the liveliest teacher I've ever known!!!!
hands down the best video on pointers. amazing lecture
Finally understand pointers now thankyou!!! Only lecture able to explain the purpose of pointers.
The quality of teaching is just insane, everything is so clear, i wish all of the colleges in India would teach this way :/
Awesome.. The best teacher in world
Brilliant. Thank you so much. I've gone over the lecture material for my own uni so many times trying to grasp this. That was so clear.
Amazing professor, crystal clear explanation! Kinda looks like wilson from house
One of the best guides, subscribed to this channel!
This guy is amazing! He makes things so easy to understand. Good refresher.
Richard is the BEST TEACHER EVAR!
Wow, this guy propably made me find what im going to do after high school! Programming is so interesting!
Now those are the kind of teachers we need!
didn't know John Green knew so much about programming. Cool guy!
The same comparison crossed my mind! Hahaha
I feel exactly the same way, I studied computer science @ University of Hertfordshire. Complete SHAM, no C taught what so ever. All I learned was JAVA. Working as a Telecoms Engineer in embedded development. I find my self struggling, however this video cleared pointers up for me
Thanks you Sir
A simple explanation of pointers. int* creates a pointer variable which can store the address of another integer. if we say int* a, a is now ready store the address of int b. To get the address of variable b, we say &b. So now we can say a = &b; . We should also remember that a also has an address and can be referred to by saying &a. *a returns the value stored at the address stored in a. That is b. Lol!
I have not touched java in a while. a should return the address and *a should give the value stored at that address if my understanding of pointers is still intact.
thanks for the explaination.. this was the only thing missing in the lecture
That is &b *
actually pointers is easy..
what make its hard is,ppl always wonder why we learn it
thank you richard for clearing this up
basically pointers are use to overcoming scoping limitation
i've watched a lot tutorials about pointers and i haven't understood them till now, THANKS !
Wow, come now, this guy is fantastic! I wish I could have a king of education like they have!
introduction to the concept of pointers. Cool video.
this guy is so talented in teaching!
If only we had teachers like you! Thanks a ton for this!!!
This dude is absolutely brilliant!!! Wonderful explanation!
This really helped me understanding pointers , I wish I had teachers like this guy.
Oh my God,,amazing;thanks is a very little word ;thank you very very very very much;
God bless and guide you
Rana from Egypt
I thought this would be difficult to understand, but you explain very well. thanks!
wish i had a teacher like him
Awesome style of teaching,
learning made fun....
Thank you Mr.Richard :)
good lecture!! like the magic :) His passion is just awesome
what an enthusiastic performance! you can see he's doing it with passion and is having fun. An excellent teacher. :) And also thanks a lot! I've always felt that the use of * was inconsistent in C, thought that it was different when used in declarations compared to the rest of the program - until that great explanation! :))
I ACTUALLY LOVE THIS MAN.
Thank you very much Richard! You really know the good way of teaching!
cant be better explained as this, thank you so much.
This feel inside me, you're good for me
Very comprehensive course, thanks for that
Hell, what a great teacher. So passionate :)
Just great, it's a pity that my teacher wasn't anything close to this.
LMAO at that joke @0:58....watching this in mid-March of 2020 XD
Cables ?
great personality.. Richard sir you are awesum
Great explanation of pointers :)
really liked his way of teaching ...quite dedicated
This guy reminds me of Walter White
lol. thats true.
yes. me too :D
my prof just read his code out loud for 60 mins without explaining it... thank you for uploading this.
Best teacher ever! How I wish he was my mentor :(
"Hopefully I didn't start a SARS equivalent " lol
This is so good! I finally understood the basics of pointers!
EXCELLENT lecture!!!
Love how he says 13... shhhh.. shhhh.. shhhh :-)
This is a big help, thx for uploading it!
this is the best tutorial ever i know how pointers works now thanks Richard
I'm confused at 29:00 if we pass the address of x and y isn't task expecting the address p1 and p2? Why do we write the argument list as value int *p1 and int *p2?
Absolutely fantastic explanation! I wish I could have this kind of education!
GREAT lecture & GREAT explanation
This was a great tutorial for pointers! Big thanks for uploading this!
Excellent lecture, thank you for sharing
Great lecture i love his energy