Callback Functions in C Explained

This video explains callback functions and shows how to implement them in C.

At the start, basics of callback functions are explained. Next, an example is shown that demonstrates how to easily implement callback functions in C. Lastly, an example is shown on how to use the qsort() function that is inside the C standard library.

Code:

Chapters:
00:00 Introduction
00:18 Basics of Callback Functions
02:05 First Example: Implementation, Passing and Calling Callback Functions
05:58 First Example: A Simplification of the Function Pointer Syntax by Using a typedef
07:03 Second Example: An Explanation of the qsort() Function Which Uses Callback Functions
08:58 Second Example: An Implementation of a Comparison Callback Function and It's Usage for the qsort() Function
13:15 Outro

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[teriyakichicken]

First video I ever watched that helped me understand call back functions fully. Thank you

[jasnarmstrng]

Clear and straight to the point. Thanks.

[xaiga]

My question was answered within the first 40 seconds of the video, "What is a callback function?" Answer: "A callback function is a function that is passed to another function as an argument." Good Stuff!

[alikemalaldogan]

I really liked the content. At these days it is very hard to find a deeply and simply videos. Thanks

[netsweemji]

You explained it well .it is very good and easy to understand.

[bizzy]

Thank You for going more in depth in your example using qsort. Look forward to your "C" videos!

[almnetx]

Best Callback Explanation Ever! Thanks my friend, GBY!

[dhruvandangar]

very informative.
that type of deep knowledge content we need.
please make more of these types of videos.

[slavago_]

Wow, I understand everything you explained in the video so easily! Thank you very much!

[moizkhan]

This video is great, You cleared my concept of callback and function pointer, Thanks a lot

[redmundperrz]

Very good explanation and sample of function pointer

[justdoingodswork]

Thank for this video, really helped me.

[JamesEggleston]

That’s was such a good explanation, thanks!!

[shadabpundeer]

Easy to understand. We can directly call the callback function just like a normal routine. Why we made them function pointer?
int main(){
add(5, 5):
}

[austinbaccus]

Awesome video. Thank you for the explanation! :)

[christopherlabisch]

Thank you very much. Very precise and to the point.
I have a question. Is it possible to implement asynchronous callback functions in C?

[cyberspider]

I am clearing my own mind. Just correct me if I am wrong :

"Using compar as the way it is defined (i.e. int compar (const void *p1, const void* p2); allows a custom comparison function even for objects derived from a class via type casting in compar function same as the way you have done by casting those void* pointers to int* pointer. "

If I understood above correctly, I think I have understood the utility of call back functions correctly. Please verify my understanding and oblige.

[dahlia]

Could you please share video with information regarding how callback function is different from goto ?

[NeverGiveUp_oo]

Can you implement asynchronous call back function?

[yonatanelizarov]

So callback functions are like interrupts?