#include<stdio.h>
#include<stdlib.h>

struct items {
	int a;
	char b;
	int c;
	char d;	
} __attribute__((packed));

int main(){
	int a = 5;
	printf("A stack address:         %lx\n", &a);

	int *b = malloc(sizeof(int));
	printf("A heap address:          %lx\n", b);

	printf("A code segment address:  %lx\n", &main);

	struct items i;

	printf("Pieces of i, and their addresses\n");
	printf("a:  %lx\n", &i.a);
	printf("b:  %lx\n", &i.b);
	printf("c:  %lx\n", &i.c);
	printf("d:  %lx\n", &i.d);

	printf("sizeof(i) = %d\n", sizeof(i));

	return 0;
}