Advanced Pointers and Memory Layouts

Use a double pointer to modify a pointer variable from within a function (e.g., reassigning a pointer passed from a caller).

Declare and use an array of pointers (e.g., `char *argv[]`) for managing a collection of strings.

Compare the memory layout and access patterns of a 2D array vs. an array of pointers.

Interpret and write complex pointer declarations using the right-left rule (e.g., `const char *const *p`).