what is the pointer? what purpose of pointers?

Answer 1

u can access the value of any variable with a pointer and a pointer can store the memory location means the memory address of another variable

Answer 2

u can use pointer in any function
and it is called "call by reference"

Answer 3

pointer ar faster that use array or othr variable thats because u r using the memory address read about (rvalue - lvalue)

Answer 4

pointers are address of variables which allocates its own memory location, u can modify or call an variable by its memory address.

Answer 5

what is purpose of pointer?