In C programming, two important operators are used with pointers: the address operator (&) and the indirection operator (*).

Address Operator (&):

• It is used to find the memory address where a variable is stored.
• When you use & before a variable, it gives you the location in memory where that variable is kept.
• Example: If you have an integer variable x, using &x will give you the address of x.

Indirection Operator (*):

• It is used to access the value stored at a specific memory address.
• When you use * with a pointer (a variable that holds a memory address), it retrieves the value stored at that address.
• Example: If you have a pointer p that holds the address of x, then *p will give you the value of x.

Example

#include <stdio.h>

int main() {
    int x = 10;       // Declare an integer variable x
    int *ptr = &x;    // Declare a pointer variable ptr and assign it the address of x

    // Print the address of x using the address operator &
    printf("Address of x: %p\n", (void*)&x);

    // Print the value stored at the address held by ptr using the indirection operator *
    printf("Value at address held by ptr: %d\n", *ptr);

    return 0;
}