Question

 int a[2];

This in memory actually looks like:

 //Assuming int is 2 bytes 

 add=2000, a[0]=124    

 add=2002, a[1]=534 

How does this actually look like in memory

 struct l {

 struct l    * n;

 long int pad[7];

 };          

 struct l container;

I am unable to visualize. Please help!

BTW this is taken from section 3.3.2 of What Every Programmer Should Know About Memory

Answer 1

Assuming a pointer in your architecture is 4 bytes and a long int in your architecture is 4 bytes:

struct l {
   struct l    * n;
   long int pad[7];
};

struct l someName;

layout will look like:

add=2000, someName.n
add=2004, someName.pad[0]
add=2008, someName.pad[1]
...
add=2028, someName.pad[6]