packed

#include <stdio.h>
#include <math.h>
#include <stdlib.h>
#include <time.h>
#include <string.h>



typedef struct {
char a[16] ;/* 16 octets */
}align; /* 16 octets */

typedef struct _noalign {
char c; /* 1 octet */
double d; /* 8 octets */
int i; /* 4 octets */
char c2[3]; /* 3 octets */
}__attribute__((packed)) noalign;


int main()
{
    align a;
    char b =a.a[0];
    char c[2];
    for (int i = 1 ; i < 3 ; i++) c[i]= a.a[i];
    char d[4];
    for (int i = 4 ; i < 9 ; i++) d[i]= a.a[4];
    char e[8];
    for (int i = 9 ; i < 16 ; i++)  e[i]= a.a[8];
    //for (int i = 1 ; i < 9 ; i++) d = d + a.a[i]; faux
    //printf("b = %d c=%d  d=%d e= %d\n",sizeof(b),sizeof(c),sizeof(d),sizeof(e));
    printf("noalign packed = %d \n",sizeof(noalign));



    return 0;
}