C++ FUNCTIONS (2020) - What are generic functions and templates? PROGRAMMING TUTORIAL
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- เผยแพร่เมื่อ 9 ก.ย. 2024
- Generic programming is used to increase the efficiency of the code. The advantage of writing generic code is code reusability (which means that code that was written once can be used multiple times) and avoiding function overloading.
In this video I'm explaining generic functions and templates.
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Wondering if we can swap an integer and a floating number in a single function with generics.. Do you know how to do that?
I really wish you were our college professor 😭 you'd honestly save an entire class and help them pass instead of the professors we have that drive us to insanity and failure. i thank you from the bottom of my heart
No their knownlege is so much when you reach to their level you would be acting like them so just learn to be your best
my college prof is shit Ingl
@@danieldian8708 NOPE. they are only professors because they are doing research, they really dont care if you dont understand them, thats how most computer science professors are. They are not trained to teach pretty ironic huh since their job is to teach
@@danieldian8708 True. But having great knowledge and being a great teacher are not necessarily correlated
I cant believe I did not know about this channel until now. Thank you for making high quality and easy to follow videos
Thank you for this comment, and welcome 🤗🥰
If anyone is getting an error with this, it's probably because you named the "swap()" function in all lowercase. There is already a "swap()" function defined in the std library that you imported using the namespace so it will cause an ambiguous function overload error.
thank you so much for this comment. With this 4 lines only you'd explained why using namespace std is a bad practice.
Thankyou
Thank you ❤
thanks a lot
@@Kanha0321 nothing wrong with it, you just need to name your functions uniquely, so that you don't clash with std. I've not had any problems, just had to name my functions following a pattern so that there are not any clashes.
One of the best c++ tutorials on youtube. You amazing explain!
Thanks ☺️🥰
One of the best and easiest definition of references ever! Dry, to the point. No fluff.
10k coming faster than the speed of light! Great Content as always!
Thank you so much! Big support as always! 💕
About to pass 170k now!! Super awesome!!
I just ran into an issue on this one where I defined my swap function with all lowercase (since functions are camel case and classes are camel starting with an upper, so I thought you made a mistake). Turns out there's a built in swap function that's already generic (and it was getting called without prepending std:: since I included the std namespace globally). So when I used the generic type in my function definition it thought I was overloading it to be generic AGAIN so it had no clue which one to use... Interesting little bug that sent me down a rabbit hole lol
life savior
as a software engineer who has learnt C++ before I found your explanation amazing.Keep it up.
Thank you so much for the support! 🥰🤗
I am a first year student at ITE university and i have just found your tutorial for c++ programming 😮it's amaizing and the best i swear💘 we are so lucky to have you miss 🥺🥺
Keep going😍❤️❤️
Fatima, that is awesome! I'm so happy that my videos can help 🤗🥳
@@CodeBeauty yesss, it helps alot🥺🥺❤️❤️👍and i hope if we can have a java course by you🙏💘 we will be so thankful😍❤️❤️
you are the best programming TH-cam instructor, no one compares to your tutorials in both explanation of theory, along with easy to follow, concise and explicit tutorials.
best channel to learn programming for slow learner like me🤩
I'm happy that even the videos I made 4 years ago still help. If you want to learn practical programming and get skills that you need to start a career, then you can get my course and mentorship here:
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Thank you so much for your clear and precise explanation than the book. You are currently holding the medal for C++ tutorials.
You are so crisp in your explanations and presentation that I feel yours are one of the best c++ tutorials on TH-cam. I would recommend these videos to everyone. Will you please make some videos on software architecture for budding coders. What I mean, how should one start developing a software/application and organize his/her code?
Einstein quote: “If you can't explain it simply, you don't understand it well enough.”...you make it all so simple Saldana....
Thank you 🥰
Best codes explaination method on yt .. 💯 thanks saldina 💕
Generic programming using templates is one of those great features in modern C++
and you explain this in a very easy to follow way. Thank you, CodeBeauty.
You deserve more subscribers. Thank you so much
So many people cannot explain this subject well and you make it look like a child's play toy.
thank you
you reallly killed my 8 days of research , in just 10 min
omg code beauty i'm really surprised by you're explain it made me finished your course of function only in 3 days 😍😍😍thank u so much beauty and now i'm gonna to oop course
It's been three years. Is this amazing girl still alive?
*Generics are a way to make functions that work for different variable types.
* put "template" (or any other name for your template) in the line above your function, and use that name as the type of the variables in the function.
*Although it is not required, it is best practice to specify the type of variables when you call the function. For example, instead of
Swap(a, b);
You should do
Swap(a, b);
Thank you for the video, Saldina!
Phenomenal video, this is the first of your videos I have watched. I returned to university to fulfill my life dream of combining my love in computers & physics. My dual major currently is Computer Science & Physics, this video is invaluable & really helped me understand the concept. I will be watching more of your videos and maybe gain a slight advantage over my far younger peers (I'm twice the age of many of my classmates). Thanks again and welcome to my algorithm!
Many, many thanks CodeBeauty for your wonderful tutorials! You make the most difficult C++ extremely easy to understand. I just love your tutorials. I think by following your tutorials even a baby can code in a most difficult language as the C++ can be just like a pro.
Your videos are just way too in-depth and very well explained. you're like a goddess of code explanation... please I'm not sure if you stopped making videos, but don't stop... create more videos to help the world of students.
I love to watch your videos . You're awesome .
Thank you very much Saldana, love you
I started learning C/C++ 3 years ago based on several other tutorials and i can say your tutorials are so much better that i can not help watching them all even though i already know most things you explain...which is pretty amazing i think!
Speaking about functions, maybe you could also insert a video about callback functions in this playlist.
how is your level nowadays?
I always learn something new from your videos. Amazing content as always 🔥
🙏💙
I got through all of your six videos on Functions tonight - thanks very much posting them! And I learnt something which I'd never covered before, viz. generics and templates - again, thank you!
Thank you so much for your work. I understand perfectly what you said in yours videos. I like your style as you explain the different parts from IT. I am glat to hear your , see you and learnt from you. So move on , smile, have a beautiful day and thank you again. ^-^
Thank you. I wish you a beautiful day too 💟
clear and easy... how it should be
this explanation is just simple and clean perfect!
thanks saldina that was really helpful and well explained :)
🤗🥰
Easiest explanation I found. Thank you very much!
Every explanation was phrased perfectly, thank you
Muy muy bueno, se entiende, los ejemplos son de claridad absoluta y sencillos. 10/10!!
can you please make more vedios on c++ templates deeply please. as its a important concept for competitive programming..thank you
I love you, you make it seems easy❤❤
Hi, can you please do a video about "template within a template?" Something like this: template , I've always had trouble reading and understanding it. Thanks~
You are so close to reach 100k subs!!!!!!!
I am 🥳🥳🥰
Hi Saldina! You created excellent C++ videos but no UTF-8 string handling. Please make one.
Thanks, best explanation for templates I've found !
Thank you! 🥰🤗
I must thank you very-very much! Great explanation and really helpful! Keep going on.
🥰🤗
so goood thank you
A really good & clear explanation, thankyou !.
You're really, really good !!!
Incredible easy explai, thanks a lot.
Thanks!
Thank you again 🤗🥰
Another amazing video :-) Thank you so much once again Saldina ! :-)
O M G...Mind Blowing ...😇
Hey this generics is really useful If I knewabout it before it'd be cool but no more tension you taught me :)
lucid explanation!!
amazing video , thanks
excellent explanation, please i have a problem and i don't know how to do it, and it would be a great idea for a video ! if you can help !
Excelente tutorial, muitíssimo obrigado.
you are so good.
thx that was helpful👍
Good explanations. But you didn't explain why the Swap function has the addresses of a and b as the parameters. Why aren't those parameters pointers like in the Pass parameters by a reference video?
Thanks for the content and your time. You think we get the point to see topics about Threads/Process/Concurrent programming in C++ ? Thanks one more time 🙏🏾
Yes, I'll work on those videos in the future ☺️
Thanks
Спасибо за урок)
Just a note that case matters in the name 'Swap', because 'swap' is already included (somewhere)...
can you make a video about class templates !!
the best istg
thanku
thanks :)
how do I write the code for separate files cpp, .hand main.cpp?
I think with C++ 20 you can now use auto: void swap(auto &l, auto &r).
I would like to know if there is any way to use a generic type input in c++. Something that allows me instead of passing the value by argument (using function overloading or templates), simply capturing an generic input from the keyboard.
For the youtube algorithm.
Thank you! ❤️❤️
Hi Saldana - following your advice for best practice I moved the Swap() definition below main(), and placed a Swap() declaration above main(). However, things started going a bit pear-shaped when it came to adding template. Unless I place the template line immediately above both the Swap() definition and declaration I get a compiler error. But the solution feels wrong as I am duplicating the same line of code. Is it correct to write the template line twice, or is there a better way? Cheers. P.s There seem to be many very clever people teaching coding on YT, but imo you have by far the best teaching style - you always break the problems down into easy to understand chunks, so thank you!
Please teach operator overloading
Hello. I have some question for you.Why do you choose C++, not C# or Phython
did u make those in-depth videos for templetes
Mam, Is it possible to perform multiple functions using the same to template example I can add, subtract, multiplication, divide only in one template. I'm in trouble. Please help me or anyone can else🙏🙏
can you plz make a video on c++ stl?
Hi, just making sure, I cannot use the same template for multiple functions right? I always have to create a template for each individual function?
Sorry for the English.
I think the (template ) is part of the function declaration.
I tried to use declaration and definition, and I only managed to do it like this:
#include
using namespace std;
template void Swap(T& a, T& b);
int main() {
int a = 10, b = 20;
cout
@@joaops4165 thanks! 😁
how to automatically format your code by just press an enter?
👍
The function swap is only partly generic imo
It swaps two *int* variables or *two* char variables
Real generic would have to be able to handle _more_ than *one* type, in the _same_ call
So
int main(){
int a=5;
char b = 'b';
cout
dunno if you still need the answer but yes, it is possible. Just declare two template parameters:
template
void swap(T &&a, U &&b);
oooooooooooooooooh - I'm kinda disappointed that that's all they are... I was expecting some sort of Archean Dark Voodoo
Hahaha, nope
They're pretty simple 😊😊
Neobicno bez naocala :)
Hahaha 😅
Uglavnom ako sam citav dan provela radeci na racunaru pa onda uzmem da snimam, oci mi budu umorne i moram nositi cvike 🤓
A ako sam odmarala od ekrana taj dan, onda mogu i bez njih 😋
can you explain the function type of void?
i love u
6:20 Vid starts here if you know at least a little bit of c ;)
You dont have a tutorial for arrays?
#include
using namespace std;
int factorial(int num) { // Renamed for clarity
if (num == 0) {
return 1; // Base case for 0!
} else {
return num * factorial(num - 1); // Recursive call
}
}
int main() {
int num;
cout > num;
if (num >= 0) {
cout
💜💜💜💜💜💜
We pass arguments*
i want your voice to be my siri
Hahaha, that is funny 😅😁🤗
DARK MODE!!!!!!!!!
you also watch Bucky's tutorial na lmao xD.
merry me
#include
using namespace std;
template
void change (E &a, E &b){
E temp;
temp=a;
a=b;
b=temp;
}
int main()
{
int x=7, y=47, z;
change(x,y);
cout
...or you can just use Python :)