What is a pointer you?

A pointer only holds an address information (location) in the memory. if a pointer holds points another pointer then it is a pointer to an other pointer. Pointer holds an address in the memory so in...

Pointer is a variable that stores value of address of a variable. Since pointer itself is a variable,it is allocated a memory location. Pointer to pointer is a pointer which points to the address of...

pointer is the variable that holds the address of another variable

A pointer points to another pointer in the same way that a pointer points to a non-pointer object. Start with a pointer to an object... int a; // the object int *pa = &a; // the pointer pa;...

Usable. A prominent example is param argv of function main.