Check out the hands on guide - ruclips.net/video/GVEcLAX7ogk/видео.html Get notified of my upcoming C/C++ Courses - www.codebreakthrough.com/upcoming-c-cpp-courses
Wow, Caleb! Thank you so much for starting this series. I am in the middle of your first series of C++. That series is really awesome. I like your teaching style. You are a great teacher. I found you concluded the previous series a little short. I am delighted to see this intermediate series is started. Kindly continue this series. Your series is really helpful.
Nice, idk if you explained it really well or if after playing with references and coming back to an explanation was the final thing to make me understand this concept, but I feel like I finally get it.
Love this video, he really does explain it far better than the course material in the 300 level undergrad course I'm currently taking. Also... LEEEEEEEEROYY JENNNNNNNNKINS
Few basic examples to remember: void work (x){return x;} // No reference void work (&x){return x;} // Argument reference void& work (x){return x;} // Function reference void& work (&x){return x;} // Argument + Function reference int& a=b; reference variable to variables int&& ref=work(x); reference from function (without reference) to variable int& ref=work(x); reference from function (with reference) to variable
QUESTION: 7:58 to 8:04....doesn't "int &x" at the function refer to the 'address' of 'a' rather than the 'value ' of a ( ie '5')? That is, when we call the function, aren't we passing in the "address of a" rather than the "value of a"?
How I think of it working is: when you call work(a), internally the program is saying int & x = a; and then doing the things on x. I need to retrain my brain on how the function arguments work from my Java days, but the 'int' is always correct, and says that the function expects an integer. If it is 'int & x', it will get a reference to an integer, and if it is 'int * x' it will get a pointer to an integer.
After watching this video I have two things to say: 1 - thank you, your explanation is heaven sent and 2 - after your Leeroy Jenkins comment, I gotta ask. You play WoW, because if you do were gaming 😂
"Maybe that's a bit more depth than you need for this introductory video" Nope. Not for me, at least. That last detail you went over was super helpful. Thank you for the great video!
hey beginners - if you want a simple explanation, here it is. when you name a variable, the compiler makes a table with that variable name in one column and a number in another column. the number is what you get when you use a reference. the number is an address in whatever memory space is in use - you don't have to worry about that, the linker handles physical placement. once you have the number stored, you can write to or read from memory. now, slightly more complex is that you can also do pointer math and move around in memory on your own, reading and writing things that may not have a variable name associated with them. So you can say "go to the spot where variable a is, then advance 2 bytes in memory and write a 3 there" that allows you kind of direct access to the memory space. there you go - 15 minutes saved for those of you who don't need so much hand holding.
I got problems but I had problems with understanding reference. It seems to me like reference is sometimes treated as a memory address but then you can also treat them as normal variables. When it comes to pointers it is clear when that you always have a memory adress and if you want to see what is on that memory address, or change what is on that memory address, you deference the pointer by putting a * in front of the pointer. These references are a little bit confusing because they sometimes act as pointers and they sometimes act as normal variables. I don't see why I can't just replace references with pointers. For instance the function swap would go like this. void swap(int* a, int* b) { int temp = *a; *a = *b; *b = temp; } Also, when you use pointers as arguments of a function you know you are passing memory addresses to the function so you expect that the function might change the variables whose addresses you are passing. I find pointers more clear and understandable than references.
this is mean, reference is not a new variable refer to specific place in memory? it is the variable which it refer to??!! so this is not add on size of memory one place! right?
This is a great video and I understand references and pointers now (from your other video). However, I could change the variables that were passed in as parameters even without references. For example (in C++ still because I've been learning for 2 days so far lol): void Swap(int x, int y) { int temp = x x = y y = temp } And that works fine so 🤷
its not the same as he said in this case x and y would be a copy of the values you passed, the variables outside the fuction will still be the same even if you change the values in x and y
@@flyingspaghettimonster8612 Oh ok thank you, would I need to create a reference inside the function then and then change the value of that reference? That's pretty cool
Frankly it is very difficult to give my comments to anybody but you deserved highly top and your flag is great I am still can't find thanking words for long time being misunderstood.
Check out the hands on guide - ruclips.net/video/GVEcLAX7ogk/видео.html
Get notified of my upcoming C/C++ Courses - www.codebreakthrough.com/upcoming-c-cpp-courses
*sees an asterisk in code*
My brain “OHHH HEEELLLLLLL NOOOOOO”
@Messiah Atticus Hehe nice scam
You described my last week so well.
I've been like this since C
I'm here to stop my confusion about pointers
I can hear your comment
Thanks Caleb, I've been following your C++ Tutorial way back 2019 because you are a great teacher, you saved me a lot.
I've been looking for a follow up to his C++ course. Any suggestions?
@@rohanarya5400 get working on eulerprojects Github and Codeforces. You could get a reading on the book 'code'.
The fact that this guy is currently carving our way for our future just for us is priceless
Fax
If this was your future, YOU would carve it for yourself.
Did you play the clip? 😂😂
Man I love his vids. You can't be bored to death.
Bro, you made the understanding of references so easy… i can’t thank you enough.
Commenting for Yt algorithm
I didn't expect that C++ lesson on blackboard can be so good, excellent job
Because it is very simple... which is why we need to talk about it. 😂
I've been struggling for weeks trying to understand this and pointers and you literally got it to click in 15mins. You're amazing, subscribed.
this is great. Now I got it. My prof sucks. He mixed pointer and ref and totally confused us.
Thanks for the great explanation! I am new to C++ and needed to understand this, and also the part after 13:00 was very informative and useful!
You're truly the best coolest teacher i have ever seen in my life
Crazy. I was reviewing this earlier! Keep it up!
This was a wonderful video. I'll be patiently waiting for more.
Thanks for this. POinters feels like a game of inception in my head. Especially when it comes to pointers to pointers
Wow, Caleb! Thank you so much for starting this series. I am in the middle of your first series of C++. That series is really awesome. I like your teaching style. You are a great teacher. I found you concluded the previous series a little short. I am delighted to see this intermediate series is started. Kindly continue this series. Your series is really helpful.
Wish I found this video sooner. After 4 hours of trying to understand this concept I finally get it haha. Thanks!
Thank you Caleb! I'm in a C++ bootcamp and your channel has taken me from failing to an A!
Nice, idk if you explained it really well or if after playing with references and coming back to an explanation was the final thing to make me understand this concept, but I feel like I finally get it.
Love your teaching method and your comedy sprinkled throughout! Thanks man!
Love this video, he really does explain it far better than the course material in the 300 level undergrad course I'm currently taking.
Also... LEEEEEEEEROYY JENNNNNNNNKINS
You're literally the best, thank you so much!
You are a great instructor.
concise and clear. thanks dude
the way you teach is very effective and easy to understand. Thank you!
This was incredibly helpful, thank you for the detailed explanations!
"But no... you just got trolled" I almost spit my coffee
10:35 troll joke made me chuckle out loud, great video!
You make learning this like 10 times more fun, i apprecieate it!
Best caleb in the world 👍❤️
Bravo! Thank you.
Few basic examples to remember:
void work (x){return x;} // No reference
void work (&x){return x;} // Argument reference
void& work (x){return x;} // Function reference
void& work (&x){return x;} // Argument + Function reference
int& a=b; reference variable to variables
int&& ref=work(x); reference from function (without reference) to variable
int& ref=work(x); reference from function (with reference) to variable
this is awesome! thank you so much for creating these illuminating lectures !
so far the best explonation i could find
Bro. You're a beast. This is just what I was looking for.
I hate this dude when i was noob but still want to see this dude
there is no love it button, so i will type. Love it, thanks a lot.
QUESTION: 7:58 to 8:04....doesn't "int &x" at the function refer to the 'address' of 'a' rather than the 'value ' of a ( ie '5')? That is, when we call the function, aren't we passing in the "address of a" rather than the "value of a"?
How I think of it working is: when you call work(a), internally the program is saying int & x = a; and then doing the things on x. I need to retrain my brain on how the function arguments work from my Java days, but the 'int' is always correct, and says that the function expects an integer. If it is 'int & x', it will get a reference to an integer, and if it is 'int * x' it will get a pointer to an integer.
This can't be explained better than this. Top notch
you make it sound easy
Thank you! This was well detailed and clear.
Thank you very much. God bless!!!
you explain things the best ive seen. thanks
Thank you so much ✨
this video is actually fantastic, thank you so much, i appreciate your work, keep it up and good luck with everything :D
This was such a great video all sorts of confusion got cleared so well. Thanks brother.
Young and Intelligent Your the best teacher Caleb.
From Ethiopia
Great explanation Caleb! Awesome. Way to go!
exactly what i looking for!
Great video! Exactly the explanation I was searching for
Thank you for this very useful video!
After watching this video I have two things to say: 1 - thank you, your explanation is heaven sent and 2 - after your Leeroy Jenkins comment, I gotta ask. You play WoW, because if you do were gaming 😂
Wait, is this C++ series part 2
kinda
@@lexuthelexer1212 ok thanks
Good tutorial. Thanks.
i am in love with your teaching style.
I like the technique of your teaching. Really it's a great tutorial man
your r great... such a simple and clear explantion /////
just perfect ! thank you!!
Great video, thank you man
4:28 I actually thought all this time that this were 3 completely different things. And it's just a variation in writing.
"Maybe that's a bit more depth than you need for this introductory video"
Nope. Not for me, at least. That last detail you went over was super helpful. Thank you for the great video!
Nice! Thank you for this.
hey beginners - if you want a simple explanation, here it is.
when you name a variable, the compiler makes a table with that variable name in one column and a number in another column.
the number is what you get when you use a reference.
the number is an address in whatever memory space is in use - you don't have to worry about that, the linker handles physical placement.
once you have the number stored, you can write to or read from memory.
now, slightly more complex is that you can also do pointer math and move around in memory on your own, reading and writing things that may not have a variable name associated with them. So you can say "go to the spot where variable a is, then advance 2 bytes in memory and write a 3 there"
that allows you kind of direct access to the memory space.
there you go - 15 minutes saved for those of you who don't need so much hand holding.
He what did he type looks 8 or & idk what he type
Thank you well explained
Thanks Caleb.you are an amazing teacher.
So basically a reference is like a desktop shortcut for an exe application.
Just finished the last series and I really hope this is the start of part 2
I love the way that you write & diffrent in every time😂😂
Thanks man. You helped me a lot.
Thanks a lot!
Nice video. I like how you dont write any code on a computer. makes it better
Hey can you make something on typescript
Very well explained!
I got problems but I had problems with understanding reference. It seems to me like reference is sometimes treated as a memory address but then you can also treat them as normal variables. When it comes to pointers it is clear when that you always have a memory adress and if you want to see what is on that memory address, or change what is on that memory address, you deference the pointer by putting a * in front of the pointer. These references are a little bit confusing because they sometimes act as pointers and they sometimes act as normal variables. I don't see why I can't just replace references with pointers. For instance the function swap would go like this.
void swap(int* a, int* b) {
int temp = *a;
*a = *b;
*b = temp;
}
Also, when you use pointers as arguments of a function you know you are passing memory addresses to the function so you expect that the function might change the variables whose addresses you are passing. I find pointers more clear and understandable than references.
this is mean, reference is not a new variable refer to specific place in memory?
it is the variable which it refer to??!!
so this is not add on size of memory one place!
right?
Great video!!!
Helped some what keep it up
Well explained
thank you for this
Your the best bro
Thanks for the tips
how can we use pointer to reference like this (int *& a)
At 13:30, what if you did like &b = &c? Would that work or can you only assign b directly and not it's address?
I wish i Saw this video at the beginning of the semester😭
Dude you own.
Dude you are on fire today.
Thanks caleb 💛
A reference (ref) does not occupy memory space, cannot be null, and cannot be modified. Attention!!!
This is awesome !
This is the first time any C++ concepts really started to "click". Bro, keep up the good work! Thank you for your help!
Thanks Caleb
This is a great video and I understand references and pointers now (from your other video).
However, I could change the variables that were passed in as parameters even without references.
For example (in C++ still because I've been learning for 2 days so far lol):
void Swap(int x, int y)
{
int temp = x
x = y
y = temp
}
And that works fine so 🤷
its not the same as he said in this case x and y would be a copy of the values you passed, the variables outside the fuction will still be the same even if you change the values in x and y
@@flyingspaghettimonster8612 Oh ok thank you, would I need to create a reference inside the function then and then change the value of that reference? That's pretty cool
Subscribed! 🙂
This is FUN-THEN-MENTAL (fudamental)
Frankly it is very difficult to give my comments to anybody but you deserved highly top and your flag is great
I am still can't find thanking words for long time being misunderstood.
1:41
9:40
Epic
excellent
perfect!