📚 Learn how to solve problems and build projects with these Free E-Books ⬇️ C++ Lambdas e-book - free download here: bit.ly/freeCppE-Book Entire Object-Pascal step-by-step guide - free download here: bit.ly/FreeObjectPascalEbook 🚀📈💻🔥 My Practical Programming Course: www.codebeautyacademy.com/ Experience the power of practical learning, gain career-ready skills, and start building real applications! This is a step-by-step course designed to take you from beginner to expert in no time! 💰 Here is a coupon to save 10% on your first payment (CODEBEAUTY_YT10). Use it quickly, because it will be available for a limited time. #include #include using namespace std; bool ascendingCompare(int a, int b) { return a } bool descendingCompare(int a, int b) { return a > b; } void sortAscending(vector& numbersVector) { for (int startIndex = 0; startIndex { int bestIndex = startIndex; for (int currentIndex = startIndex + 1; currentIndex { // We are doing comparison here if (ascendingCompare(numbersVector[currentIndex], numbersVector[bestIndex])) bestIndex = currentIndex; } swap(numbersVector[startIndex], numbersVector[bestIndex]); } } void sortDescending(vector& numbersVector) { for (int startIndex = 0; startIndex { int bestIndex = startIndex; for (int currentIndex = startIndex + 1; currentIndex { // We are doing comparison here if (descendingCompare(numbersVector[currentIndex], numbersVector[bestIndex])) bestIndex = currentIndex; } swap(numbersVector[startIndex], numbersVector[bestIndex]); } } void customSort(vector& numbersVector, bool(*compareFunctionPtr)(int, int)) { for (int startIndex = 0; startIndex { int bestIndex = startIndex; for (int currentIndex = startIndex + 1; currentIndex { // We are doing comparison here if (compareFunctionPtr(numbersVector[currentIndex], numbersVector[bestIndex])) bestIndex = currentIndex; } swap(numbersVector[startIndex], numbersVector[bestIndex]); } } void printNumbers(vector& numbersVector) { for (int i = 0; i cout

@hbm293

2 жыл бұрын

Due to the cumbersomeness of the types of these function pointers, they are good candidates for being typedef'ed: typedef bool (*SORT_FUNC)(int, int); void customSort(vector& numbersVector, SORT_FUNC compareFunctionPtr) { .... } SORT_FUNC funcPtr = descendingCompare; // Here in C++11 one could use that "auto" keyword to not have to write the actual type of 'funcPtr'.

@arod3295

2 жыл бұрын

when I used "cout

@giuseppecinque2828

2 жыл бұрын

It is a bubble sort

@kevin_mitchell

5 ай бұрын

​@@arod3295 This is my behaviour too, but I'm using the Terminal and not VSCode. cout

Saldina, I said it in the chat and I will say it here: your videos are well worth watching in my opinion as you are concise, thorough, and pleasant to listen to. Please keep up the excellent work!!

@CodeBeauty

2 жыл бұрын

Thank you so much, I will! 🙏💙💙

Saldina! We love you all around the World! Cheers from Argentina!

@lalaff3012

2 жыл бұрын

Cheers from Brazil!

@CodeBeauty

2 жыл бұрын

I love you too! 💙💚 🇦🇷🇧🇷

@luisrobertoflores3278

2 жыл бұрын

Cheers from El Salvadorl!

@iam_mausam

Жыл бұрын

Cheers from India 🇮🇳

@unchris

Жыл бұрын

Cheers from Peru

It's nice to see you again Mam🙂

@CodeBeauty

2 жыл бұрын

🥰🥰🤗

Great video, but some aprovements. First a typedef helps a lot with the strange syntax. For example: typedef bool (*Compare_T)(int,int); Compare_T myFuncPtr; Sort( vector& Numbers, Compare_T OnCompare ); Second why don't you pass your compare function directly? Sort( myNumbers, AscendingCompare );

After these videos, i'm feeling myself like senior C++ Developer:) Thanks!

@CodeBeauty

2 жыл бұрын

I'm so happy if my videos can motivate you and make you like programming! 🥰🥰🥰

@joebosah2727

2 жыл бұрын

You are just starting

Great videos, hope you complete 100k subscribers soon❣️

@CodeBeauty

2 жыл бұрын

I hope so ☺️ Thank you! 🙏💙

Thankyou somuch..i really need this

@CodeBeauty

2 жыл бұрын

You will understand why and when to use function pointers after watching this! 🤗🤗🥰

@pkentertainment2143

2 жыл бұрын

@@CodeBeauty thankyou ❤️🥰

Awesome explanation

@CodeBeauty

2 жыл бұрын

🙏💙

Hi, I am from Taiwan. Thank you very much! Your tutorial is always very clear! I love the style you teach!

I really need this, thanks, it's very helpful

@CodeBeauty

2 жыл бұрын

🙏💙

@herlim6927

2 жыл бұрын

@@CodeBeauty 🙏 love from india

@CodeBeauty

2 жыл бұрын

@@herlim6927 💚🧡🇮🇳

Saldina. Many thanks for ur courses. One thumb up is not enough.

@CodeBeauty

2 жыл бұрын

Thank you so much! 🙏💙💙

Thank you for all the videos, they already taught and helped me a lot🥰 and you are kind of someone I look up to soo, just thank you and have a nice day

@CodeBeauty

2 жыл бұрын

Making these videos is a lot of hard work but comments like this bring me a lot of joy! Thank you so much and I wish you happy learning and hope you'll have a great day! 🥰🥰🤗

I'm self-learning C++ and your videos are really helpful. This is a very clear explanation about function pointers. Thank you so much for your hard work =)

Love your videos! Your explanations are excellent!

@CodeBeauty

2 жыл бұрын

🤗🥰🥰

I used to hate using Pointers but I start to love it now This vid pushes my peak interest further

Callback functions have always been a problem for me as I learn them and immediately forget them. But your explanation is very straightforward and I finally learnt what each part of the syntax is doing. Thank you very much. Keep doing these great videos.

ur voice is very sweet, thanks saldina for this awesome video🙏

@CodeBeauty

2 жыл бұрын

🙏💙

Function pointers are awesome. That's programming art. Every time, I think I know everything but luckily with you and your channel, there is always something more.

Thanks Saldina for explaining the function pointer concept with proper example. Please keep making such videos.

Thanks a lot ...❤️❤️❤️...

@CodeBeauty

2 жыл бұрын

❤️❤️❤️

I'm a C++ beginner and this was well done. This was very easy to follow and I will be tuning in for more videos.

bool compare(int a, int b){ return a sort(arr.begin(), arr.end(), compare); I was always wondering how this function works and today I have learned it from you. Thank you for your all videos

I have found your C++ videos very down to earth and really easy to understand. Thank you!

your videos are simple and concise and make us love programming, thank you for such awesome videos.

Excellent video. I think it's simpler and pratical to call the compare function directly in customSort. Like this: int main(){ vector numbersVector = {4, 2, 1, 3, 6 ,5}; customSort(numbersVector, descendingCompare); printNumbers(numbersVector); system("pause>0"); }

i can not believe how easy you made it , thanks a lot ❤

Great video! Function pointers make sense and can be usefull but I really never heard of function pointers until now, even though I studied computer science(about 18 years ago)... 😁 Thanks for teaching me new things about programming.👍

@CodeBeauty

2 жыл бұрын

Yep, they are very useful. I use them very often when I want to invoke a method of the parent class from the child class 🤗🤗😃

Been 20 years ago when I wrote my last c/c++ program at school. But this serie makes me want to code some old school tasks

the countless embedded code I've read through and copied and pasted that refused to work because of missing functions that pointers were looking for...I never understood the problem until now...Thank you for the detailed video and the channel, I'm slowly working through all your tutorials!....Beyond that..uff that accent

Thank you. My professor assigned a function pointer assignment, but he didn't have time to really explain it. This really helped :-)

i already know about function pointer but I got so much clarity in this video that I was missed. You are great...in simple Function pointers are used instead of switch case (i.e) to reduce the code

Your accent is really sweet ❤️ and Saldina you rock 😎

@CodeBeauty

2 жыл бұрын

🙏💙💙

Hey saldina ,your student here from KZread community requesting you to make Code reading vlogs on c++ You can ask us (your subscribers) to send their codes to you so that you can explain better way of writing the same code for the questions 🙋🙋🙋

So easy to understand. Thank you so much!!!

Made perfect sense to me. Thank you for putting this video together. The concept is complex, but you made it very easy to understand. I am now subscribed to your channel!

Thank youu!! your explanation is really clear throughout

Great video, easy to understand. I understood what the code that I thought looked complex in your video meant and I surprised myself. All thanks to your explanation

Hey thanks for the great explanation and where to use it, i kinda knew the syntax of func ptr but wasn't sure where to use them, this helped a lot!

Yep, definitely very helpful, thank you very much, Saldina!

Thank You For Your Amazing Explanation :)!

Exactly what I needed. Thank you very much Saldina!

@CodeBeauty

2 жыл бұрын

🥰🥰🤗

This video is such a good one. I spent 2 hours trying to do the function as a parameter until I think of this video and solved my issue in 4 minutes. You’re awesome Saldina ❤

@CodeBeauty

4 ай бұрын

❤️❤️💪

Best part is real life usage examples so really nice video

One of the best instructor Ms Saldina..... I am ur subscriber from Pakistan

I love your videos! Please continue to make them. It’s a good supplement to class.

@CodeBeauty

2 жыл бұрын

🙏💙

Idk you have took any diciton course but you have a very smooth explaination.👍 Thank you very much.

You're amazing, thanks for keeping the spirit of C++ alive ❤️❤️❤️

@CodeBeauty

2 жыл бұрын

❤❤❤!

Your videos are really nice and enchanting

Very well explained. I understood very well.

@CodeBeauty

2 жыл бұрын

🤞🤗🥰

unbelievable again, learnt so much from your this example, initially I feel lost trying to catch up with all the codes nest, now with this more complicated one, I get to see how it all flows. Never miss a lesson to learn from her, very well put together.

@CodeBeauty

2 жыл бұрын

Happy to hear that ☺️🤗

Another banger Sald, keep it comin!

excellent video, little by little I'm starting to love this girl, because of how smart she is and the dedication that she puts into each video. Thank you for taking the time to publish this kind of videos. much that helps many of us to better understand ......

@CodeBeauty

2 жыл бұрын

Thank you for supporting me! It requires a lot of hard work to prepare, film, and edit the videos, but it also brings me great joy! 💗💗💗

I'm a beginner in C++ and I think I wouldn't get function pointers in my first try if I was on my own.. I first heard about function pointers in this video (the last video in your pointers playlist) and I learned a lot, thank you so much P. S. Your videos are great overall, not just this vid, so I subbed

Great with simple explanations, I think the use of std::function may also have been commented. I have used that especially inside classes instead of pointers to member functions.

What did I learn? Two things. 1. The code builds and runs, but it generates about a dozen warnings so I had to track down the problem to get rid of them, I prefer code that doesn't generate warnings. 2. If you want to run both sorts at the same time, you must use two different pointers, that was an easy fix. Problem 1 was harder to track down but I figured it out. It seems that the .size function returns unsigned values, while the loop variables are signed and the < causes complaints. The solution I came up with was to type cast the loop variables in the comparison part of the for loops to (unsigned), this made the warnings go away and made me happy.

Oh yea, I have to agree with Denerius Targerian, your videos are very informative and easy to follow.

thanks for the 10 hour course and everything

@CodeBeauty

2 жыл бұрын

🙏💙

Thank You, very clear explanation, so I could recap qsort() function

@CodeBeauty

2 жыл бұрын

🤗🥰🥰

why do we need to vector& numbersVector, & here? any previous video cover this?

Спасибо ^_^

@CodeBeauty

2 жыл бұрын

Пожалуйста 🤗🥰🥰

Thank for your sharing, that very helpful. Could you please make a season sharing the callback function ? Why callback functions should be static ? Thank you in advance !

Thank you so so so much!!!

my 2 Year c++ in University was a lie. I love your Videos. Can you please make video about Iterations please!

keep the cool work that you doing miss saldina

Very nice

@CodeBeauty

2 жыл бұрын

Thanks, but how did you find this video? 🧐😲 It is still unlisted 😁😅

@ucNguyen-hg2xz

2 жыл бұрын

@@CodeBeauty Really? I've finished it :3

I use function pointers when i write list (sorted instert function or sorting function) or a program for numerical integration (fe with rectangles, trapezoids, or Simpson)

Omg thx i really needed this for my memory Editor gui :D

@CodeBeauty

2 жыл бұрын

🤗🤗🥰

amazing explanation

You have a good thing going on keep up the good work. I think it's possible to do, but would be nice to see a code that first ask for mathematical equation and then solves it with user given numbers also. But I think this kinds of programs have been made already like MathCad for example and others, but I think it could be a good challenge to do.

Thank you for this great video.

@CodeBeauty

2 жыл бұрын

🤗🥰🥰

Great video!

This one was good training+usecase thanks

@CodeBeauty

2 ай бұрын

You're welcome 🥰

Very useful. Thanks!

@CodeBeauty

2 жыл бұрын

🤗🤗🥰

Hello CodeBeauty, I'm just wondering why don't you instead use std::sort to sort the vectors?

Thanks!

Standard library header please explain

Omg you are the best programming 'teacher' on youtube

@CodeBeauty

2 жыл бұрын

Thank you 🥰🥰 Fun fact, my programming teacher's name at University was Denis 😃😃

Thanks 😌.

Good 👍 I love what you do

Thank you for your explanation. I am learning a bit of C++ and have a question, if that's ok. I have come across passing functions as arguments as I needed to do it. In particular, I have a class and a member function is "attached" via another member function. So I declare the function pointer in the class and pass the desired function from the main program to the class via the attacher function which receives the adequate function in its arguments. Buuut, for some reason I have been able to do it by defining the attacher function and its arguments is not a pointer, like void attacher(double funfun(int v)){member = funfun;} Does this mean that the attacher is passing funfun by value? Like, making a copy of the function?

Love u saldina❤❤, u r the best. from Ethiopia

Hello, I hard a really hard time trying to understand direct and copy initialization. I couldn't tell the difference between: int a = 4; int a(4); When the compiler reaches int a = 4;, does the compiler first declare the variable a then the literal gets copied to a? The most confusing part is that there are braces as well. int a{4}; I couldn't tell if I should use with brackets or braces in this case. I would be highly appreciated if there will be a video dedicated to this soon. Your layman's terms explanations are spot on.

Can you please make a video about short-cuts in Visual Studio? I see that you often use short cuts, for example to multi-line comment. Short cuts can save us a lot of time, but many people don't know how to use them. Thanks in advance!

@CodeBeauty

2 жыл бұрын

That is great idea. I'll definitely make that video in the future 😃🤗🤗

Well Saldina, can you make a video on const char* which is used as a string in c/c++. It doen't make much sense to me, so if you can, then please make a video on that. Thanks! Love your videos😊

Hello , i have maybe a dumb question but at line 37 is it possible (and good) to directly invoke either ascendingCompare or descendingCompare inside your customSort without storing it into your pointer at line 36 ? Would it be beneficial ?

Ok now I'm able to build a while loop with a function pointer call inside. All fired methods have to take care to change the address of the function ptr to that method who have to be called next. In the case I would like to pass some variables I will use a void* - that sounds great!

I'm guessing that without the parentheses, we'd output to the console the address location (from RAM) of the function. 2:55 Oh! I was right! :) That's pretty cool. This was a very good and practical use of function pointers. I was experimenting with them, but hadn't imagined that this could be done with them! :)

Can you make videos where you explore famous c++ libraries and the most important options that they offer?

Can we decide on run time that which function's address will be stored in our function pointer?

Hi Saldina, Can you do a series for design patterns?

amazing

Please explain function pointers implementation using classes and methods

I like to use the "function" expression (#include) instead. Even better, lambdas.

2 Questions: #1: Why not put an additional input in customSort like "bool ascending" and use if (ascending) {do ascending stuff...} else {do descending stuff...}? Using your customSort would need an if-statement to assign the function-pointer anyway... #2: I'd like to parse a string containing some formular (like "exp(x) * x^2 + sin(x)" or something like that). Feels like function pointers might be the way to go here (although I wouldn't know a nice and clean way to do this). Any hints on how to do that?

Is there a special reason why - in Main() - the sort order function is passed to a functionpointer, and then the functionpointer is passed as a parameter to another functionpointer? You might as well pass the sort order method straight into the second sorting algorithm parameter. Why the extra indirection?

Is there a way to test the performance of codes, that uses function pointers as parameters and other takes parameters without using func pointers?

@CodeBeauty

2 жыл бұрын

Microsoft has Diagnostic tools that can help you measure app performance in Visual Studio. Here are two links that can help you learn more about that 🤗🤗 docs.microsoft.com/en-us/visualstudio/profiling/beginners-guide-to-performance-profiling?view=vs-2019 docs.microsoft.com/en-us/visualstudio/profiling/memory-usage?view=vs-2019

In your print function would you want to use a const reference to ensure nothing is changed? I could be wrong but wanted to check. GREAT video very helpful for function pointers and quite efficient.

@CodeBeauty

2 жыл бұрын

It is a good idea. If the job of the function is just to write out elements it shouldn't change them, and to make sure that they'll not be changed we can use const 🤗🤗

@mytechnotalent

2 жыл бұрын

@@CodeBeauty Thank you Saldina!

@billjohnes9380

2 жыл бұрын

@@CodeBeauty We can also use a range-based for loop. ;)

How could your "cout

Hi Saldina. Please do a video on friend function, inline, and Virtual function in detail

@CodeBeauty

2 жыл бұрын

This video should help you understand virtual and pure virtual functions kzread.info/dash/bejne/hmyalsOjpKm7aco.html 🤗🤗

@samuelseshadri3337

2 жыл бұрын

@@CodeBeautyPlease on friend function too .... 😊😊

@samuelseshadri3337

2 жыл бұрын

@@CodeBeauty It's very hard for a learner to find a tutor like you if KZread wasn't there at present. Please do more videos on C++ so we could all learn many more concepts which were not taught at University level. I learnt many things from you than my university classes. Thank you Saldina (Beauty with brain 😀)