Thread: size of structure

one int variable occupy 4 byte and one char variable occupy 1 byte. In my code I store one int and char variable using structure

Code:

#include <stdio.h>

struct S
{
    int x;
    char y;
}s1;
     
int main()
{
    s1.x = 20;
    s1.y ='A';
  
    printf("Size of Structure : %d byte \n", sizeof(struct S));
    printf("Size of s1 : %d byte \n", sizeof(s1));
    printf("Size of s1.x : %d  byte\n", sizeof(s1.x));
    printf("Size of s1.x : %d byte \n", sizeof(s1.y));
  
    return 0;
}

Size of Structure : 8 byte
Size of s1 : 8 byte
Size of s1.x : 4 byte
Size of s1.x : 1 byte



How much memory does my code occupy ?

Does structure code occupy 8 byte ?

I think code should be occupy 5 bytes only 4 byte for int and 1 byte for char total five bytes