What are dangling, wild, void, and null pointers?

A pointer pointing to a memory location which is deleted or freed is known as Dangling Pointer.

A pointer which has not necessarily initialized prior to its usage is a Wild Pointer.

A pointer pointing to nothing or that does not refer to a valid memory location is a NULL Pointer.

The pointer not having any type associated with it and can hold the address of any type is known as Void Pointer (aka Generic Pointer).