Question

Write a program to determine the addresses of memory locations allocated to various variables as follow:

Answer 1

Here you go,

PROGRAM

#include<stdio.h>

#include<stdlib.h>

int main()

{

   short int a,b;

   int c,d;

   long int e,f;

   short int size_short,size_int,size_long_int;

//printing address of variable using void pointer

   printf("\nAddress of first short int variable : %p", (void*)&a);

   printf("\nAddress of second short int variable : %p", (void*)&b);

   printf("\n\nAddress of first int variable : %p", (void*)&c);

   printf("\nAddress of second int variable : %p", (void*)&d);

   printf("\n\nAddress of first long int variable : %p", (void*)&e);

   printf("\nAddress of second long int variable : %p", (void*)&f);

   //calculating size by subtracting memory address

   size_short = (short int)((void*)&a - (void*)&b);

   size_int = (short int)((void*)&c - (void*)&d);

   size_long_int = (short int)((void*)&e - (void*)&f);

   printf("\n\nsize of short variable by subtracting address : %u", size_short);

   printf("\n size of short variable by using sizeof() : %u", sizeof(a));

   printf("\n\nsize of int variable by subtracting address : %u", size_int);

   printf("\n size of int variable by using sizeof() : %u", sizeof(c));

   printf("\n\nsize of long int variable by subtracting address : %u", size_long_int);

   printf("\n size of long variable by using sizeof() : %u", sizeof(e));

   return 0;

}