C Format Specifier

The %p format specifier is used for printing the value of a pointer in C. This phenomenon is showed clearly in the coding example below.

#include<stdio.h>

void main() 
{
    int i=100;
    printf("%d\n",i);
    int *pointer = &i;
    printf("%p\n",i);
    printf("%p",pointer);
}

Output:

100
0000000000000064
000000000062FE14

In the above code, we first initialize the integer variable i with int i=100; and print the integer value of i, which is 100. Then we created the pointer pointer that points towards the address of i.