What are the differences between function pointers and regular functions?

What are the differences between function pointers and regular functions?

Function pointers are variables that store the address of a function, allowing dynamic function calls. Regular functions are defined and called directly.

Can you give me an example of when to use a function pointer?

Sure! Function pointers are useful in callback functions, like when you want to pass a function as an argument to another function.

Are there any performance differences between using function pointers and regular functions?

Yes, function pointers can introduce a slight overhead due to indirect calls, but the difference is often negligible in most applications.

What about safety? Are function pointers more prone to errors?

Yes, function pointers can lead to errors if not handled properly, such as calling a null pointer. Regular functions are safer in that regard.