2 days of watching videos about pointers, and I found THIS GEM. Watching with mindset of "I want to see in practice, how pointers actually work and what makes them superior over working with variables", you Sir, actually did a job on me. Despite learning coding on my own just to learn something new, I hit a several walls in Cpp, C#, Python where I had problem on passing methods inside methods. Thanks a lot for this gem!

We needed this for one of our tasks today, you saved our bums :D

I was struggling to understand the use cases of pointers and I need this kind of real use in order to be motivated about learning a concept, so your video was a good help. Thanks for your effort and explanation.

The way you type is so satisfying!

Not many people talk about this. Function pointers are exciting! God bless you for doing this!!

You have a very comforting voice.

Very good explanation! Good job and keep up the great work!!!

Thank you, great example 💪🏻

Wow. this was amazingly explained. and easily followed. well done!

Thanks! Great video and channel!

I find function pointers extremely useful in the case of implementing some kind of a shell or command line with a dictionary/map data structure where a string(command) corresponds to a function executing the command. I implement something like this in C# for a college project, at that point we weren't taught delegates(C#'s function pointers) and were expected to do it with switch cases, since I was too lazy I implemented a shell with a dictionary of commands which corresponds to it's delegate.

i like your videos its easy to understand

thanks a lot! you are my best c coach, I just understand in C++, if transfer a function, we dont really need to use &fun_name. but in c, we have to

Nice vid… I feel like you might be able to accomplish this even easier with a template

nice tutorial! whats about sockets in c?

at 3:45 , why you use & in function call and * in function definition, can it be interchanged? I heard that I should use & in arguments of function definition as often as possible.

Owooo. This is awesome.

Imagine i have an class with set of foo's: foo1(), foo2(), foo3(), foo4(),...,fooN(). And i also have a member function "execute_foo(int n)" that takes a number as a parameter and executes the related to this number fooN(). I know how to implement it with switch-case construction. But i will get suffer writing a 100 "case" statements. Is it possible to do it without huge code?

I understand it but why use pointers over references and maybe could you show why pointers are used in the windows api (Win32 api), thanks

Can you save encrypted txt files in C ?

🙌🙌👏👏

So, a hack-ish way of making functions first class in C?

sound of keyboard is very bad please reduce it ! you are great in speed writing but the sound is noisy

Too fast, blew my mind. Error! Error!

What You try to say, its that I can pas function to in side of another function? Or pass multiple functions with similar structure? Is this not bit strange and over complicated? I don't see programs and peoples using that at all. Is not easier to put function in side of another function from global scope anyway? I fill that this is cheating, like some functions existing in library where was created in local scope, and where normally programmist don't have access to it, then function pointer can get access to it?? This is cheating and in my opinion this is braking rools and integrity of the program and plans of previous programmer. Is'n it? I want also mention about lambdas, Lambda make is similar to what You explain, and I think in C++ lambda should be used. And pointers to function are made in C language.

I think this great video should have been marked as advanced C. If a beginner saw this code, he or she would be intimidated. While I was learning about pointers, I heard about function pointers. Initially, I thought, 'Please stop now,' but they are useful. Actually, pointers are not that difficult for me; it's the syntax that is challenging. The syntax for function pointers is ugly, but it makes sense when explained.

this is way too fast

Just so you know, you are pronouncing 'integer' wrong. the g is pronounced like j in juice. not like g in god.

How about this method? It is a little bit cleaner #include int prod(int a, int b){return a*b;} int add(int a, int b){return a+b;} void printResults(int a, int b, int func(int, int)){printf("%d operator %d = %d ", a, b, func(a, b));} int main() { printResults(4, 3, add); printResults(4, 3, prod); return 0; }