What are pointers to pointers in programming?

What are pointers to pointers in programming?

Pointers to pointers are a type of pointer that stores the address of another pointer, allowing for multi-level indirection.

Can you give me an example of how to use pointers to pointers?

Sure! In C, you can declare a pointer to a pointer like this: int **ptr;. This can point to another pointer that points to an integer.

Why would I need to use pointers to pointers?

They are useful for dynamic memory allocation, managing arrays of pointers, and passing pointers to functions.

Are there any drawbacks to using pointers to pointers?

Yes, they can make code more complex and harder to read, and improper use can lead to memory leaks or segmentation faults.