Why are function pointers useful?

Source code can be found here:

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[datenshiddd]

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!

[lag]

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

[alauda_projects]

Bravo, frate. Super tutorial. Felicitări !

[aldekorea]

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.

[davidliverman]

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

[moha_kunX]

that was really useful, thanks gentleman

[sagivalia]

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.

[dylanhabedank]

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

[dancedance]

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

[mohdfarhanmulla]

It's is the best video which gave me more clarity about pointers, can I know little more about it?

[rkzxltk]

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

[aitbelhajayoub]

i like your videos its easy to understand

[plumtreegarden]

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

[parampampam]

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.

[Dulge]

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

[pogchamper]

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?

[talroz]

nice tutorial!
whats about sockets in c?

[pattyspanker]

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

[hugo-garcia]

Can you save encrypted txt files in C ?

[mechxware]

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