#include <stdio.h>static struct sss{  long f;  struct {int m;} snd;} sss;#define _offsetof(st,f) ((char *)&((st *) 16)->f - (char *) 16)int main (void) {  printf ("+++Struct int inside struct starting with long:\n");  printf ("size=%d,align=%d\n", sizeof (sss), __alignof__ (sss));  printf ("offset-long=%d,offset-sss-int=%d,\nalign-long=%d,align-sss-int=%d\n",          _offsetof (struct sss, f), _offsetof (struct sss, snd),          __alignof__ (sss.f), __alignof__ (sss.snd));  return 0;}