Loved this. I have been using structs as if they were classes, and function pointers as if they're class methods :'D

Callback functions in C make me appreciate virtual functions in C++ so much more :D

Everything about function pointers covered in one video. Great. Thanks.

this is my second time to watch this lesson, and the picture is more cleared. all what is explained has a sens and targeted the main core of pointer and its their use. You put all such effort to make it accessible and detailed for US, a work that has a GREAT MERIT. thank you

The best function pointer video I have come across

Another great & simple explanation, thanks for creating it!

This one video condenses so much. Examples are excellent templates. Brilliant content, thank you so much

This is a great vid; have always been interested in making C do more dynamic things and this is a great illustration of how function pointers can accomplish that. Great explanation of these concepts

I haven’t programmed in C in a two years and watched this out of curiosity but damn this video made it all click again

I found this really interesting but I’m left with a basic question - why would you do this? Even undergrad level programming courses do something similar and launch into explaining a complicated topic without first setting up why you might need to do this thing. It might be how my older brain is wired but I really respond better to a teaching process like this: * I want to do a thing (give a real world example of something that people will actually relate to) * Explain (or better, show) why what you’ve learned so far won’t be able to do this thing * Demonstrate how the new technique you’re about to teach solves this problem * Get into the details and teach the new topic I really do love the pacing and format of your videos (awesome work!) but I’m still struggling to connect it to a reason why this might be needed.

Great video! A few days ago I was researching for ways to introduce some sort of polymorphism in my generic linked list library when I stumbled upon function pointers. It completely blew my mind. I had not even the slightest idea you could do this with functions! It's crazy! Actually, I've been looking for this solution for quite a long time, but as I didn't know much of C or programming in general I didn't even know how to look for it. It wasn't until I started learning OOP fundamentals recently that I started getting hints of it. So, it's a particularly satisfying discoverment! Today I could finally start trying this out in my programs, but I'm having trouble understanding some things. In college we've been taught that a good programming practice is to declare functions, then define / implement them. In a similar manner, we've also learned from Abstract Data Types (I dunno the acronym in english, in my country is TDA) to declare all the interface's functions in the .h file, then define them all in a .c file. Without going much further, I was making a function "printData" that recieves a void pointer to some data and a pointer to a function to print that data according to its type (print_int if it's an integer, print_string and so on). I did an empty project and put everything only in the main.c file to be minimalistic. I first tried declaring all the functions above the main() function, then defining them below it, but it didn't work. Then I noticed that it does work when you just do it above the main function (declaration and implementation). My questions are: - Why is this? And, related to what I previously mentioned: - How should I do it when working with multi-file projects? It's also really plausible that I'm making a mistake so I'll double check, but ultimately my questions still stand.

Thank you for this precious content. Im brazilian and I've following your videos

Quite beautiful functionality. Thanks for sharing.

This is the most beautifully and exceptionally well explained one of a kind video on a Function Pointers in C. Wow 🤩 amazing bravo 🙌 Thanks from India 🇮🇳.

Thanks for this amazing video! Crystal clear explanation!

Really you are great , i tried to understand it from several videos but yours was the best ❤

thank you so much. You have become my go to channel to learn c.❤❤❤❤❤❤

Amazing video. Crystal clear explanation

such an amazing explanation, thank you a lot!

Great explanation! I appreciate this very much!

Beautiful! I can't believe how helpful these basics are. You have to have a strong foundation to build great things on. Thank you so much for these. Please continue to make more great content for the C language. When you run out of language basics, try code design (like handle-based design) or how to properly write out a multi-file program with all the typical things people do.

you did great job , thanks alot, from morocco

One of the most interesting videos in the list up to now in my opinion. Learned a lot! I just do not totally agree with the idea that instructions are not data. That depends largely on the definition of data. The most precise I know is that data is defined as the lack of uniformity, in other words any perceivable difference (not meaning involved, data is not information) is data and instructions are perceivable differences therefore data. But you use instruction in a a different way then other bits of data. it still data though. That is the built of writing programs they are data that tell how to operate on data.

After seeing this video , why i am being so confident to build a high level language using c 🙃

Bro you videos are fireeee! I think it will be good if you would do a vjdeo of you just building some sort of projects in c... for example implementing a vector in c, and you explain everything as you write it. Anyways.... thank you!

This channel is very good!

C is like Linux: Linux: Everything is a file C: Everything is a pointer ahahah

Your videos are amazing, thank you very much

Brilliant content, thank you so much

Great video. Thank-you.

Omg. You just saved my ass. 😂😂😂😂😂I’m so happy it’s funny. The very first example you made was more than enough for me to understand what I needed 😂😂😂I love you man. 😭😭😭 You didn’t add the second way of declaring the function pointer tho. void (*function_pointer)(int) = &function; Or maybe you did I haven’t finished watching haha. But I’m definitely saved. On to my next hurdle. Thanks a lot

Great video thanks a lot❤

Thanks, man!

Best explanation sir

Thanks bro🙂😊

Holly! I've thought myself as a not so shitty programmer in C, having studied and developed somethings with effort but never heard anything near this concept. Amazing! I can see using it together with 2D arrays to dynamic select the desired function, working with indexes rather than If or Switch. Again, AMAZING

Thanks for the video man! I do not understand though why we can add the address to the pointer without the &, is it related to the decay concept somehow? Also, the same doubt in why can we call add using the pointer without de-referencing it?

Great video

So is_freezing can be thought of as a higher order function right?

Hey, thank you so much for this awesome course! So I was just wondering, can we relate function pointers to call-back functions?

i learned pointers when I'm learning arduino and got fall in love with C so here am i learning pointers 😅

How do you declare a function pointer x to a function that returns the function to call next? e.g. while(x=(*x)());

08:45 why the elses ? When the return occurs it cannot get to the next statement which is the if.

Great content! I have one question if you may answer pls At 14:11 why are you calling the same function is_freezing with the same argument freeze_C, why are you repeating?

I still do not understand why we can omit * when dereferencing function pointets.

Great video. Do function pointers dangle? Do we have to NULL them after use?

At 12:37, is the freeze_check function call thing analogous to a, say, a lambda function in python or similar?

I've always wondered this but whats the point of calling functions like this instead of it doing without pointers? Is it faster or more memory safe?

Can we use the Arrow operator with the function pointer as we using it in pointer to structure

Hello, which code editor are you using in the video?

Nice

I dont know my english is enough for describing but ı am going to try. İn this topic ı have a question about something. When we have created normal function and then have created a pointer function, if we equalize this two of them. We dont use brackets in normal function but on the other hand we created pointer function not in main and later then in main function if we wanna use this pointer function with another pointer function, we use brackets in pointer function. For example minute 3.25 in the video is the example of first part and minute 9.39 is the example of second part. Or is there any problem that we use brackets in normal function while we are using pointer function.

Sanks men you pro

Can you make video on structure pointer

Can select_operation have a parameter? If so, how would that be declared?

Please make function pointer within a structure as member with examples

in 3:47 why there's no need to deference the pointer , in that case are'nt we gonna have the adresse ???

please say the name of the IDE or program you're using for coding and compiling, thanks in advance.

🖤🖤

i love you

Esto es joya

Does C have anonymous functions

8:22 that part was ugly. First you don't need an else when the if part returns. The code behind the if will only be executed if and only if the condition for the if statement was evaluated to false. It's not just unnecessary characters to type, it also breaks the alignment of the statements. Secondly it should be a switch case anyways.

I love your videos so much, this generation of programmers are really dumb and i feel like going back to the c/c++ programming days are what we truthly need for our understanding

it does not work. gave me compilation error: int add(int x, int y) { return x + y; } int sub(int x, int y) { return x - y; } int mult(int x, int y) { return x * y; } int div(int x, int y) { return x / y; } int *(select_operation())(int, int) { printf("select: "); printf("1. Add\t"); printf("2. Subtract "); printf("3. Multiply\t"); printf("4. Divide "); int n; scanf("%d ",&n); if(n == 1) return add; else if(n == 2) return sub; else if(n == 3) return mult; else if(n == 4) return div; else return add; } int main() { int (*operation)(int, int) = select_operation(); printf("enter two numbers: "); int x, y; scanf("%d %d ",&x,&y); operation(x,y); return 0; } got this error: warning: returning 'int (*)(int, int)' from a function with return type 'int' makes integer from pointer without a cast [-Wint-conversion] what's wrong?

hard to understand the syntax

I am still confused 😭

Its a shame that they decided to use this wierd syntax in c

can you do a pointers for c++

After seeing this video , why i am being so confident to build a high level language using c 🙃