1 #include <stdio.h> 2 3 static struct sss{ 4 char f; 5 long long snd; 6 } sss; 7 8 #define _offsetof(st,f) ((char *)&((st *) 16)->f - (char *) 16) 9 10 int main (void) { 11 printf ("+++Struct char-longlong:\n"); 12 printf ("size=%d,align=%d,offset-char=%d,offset-longlong=%d,\nalign-char=%d,align-longlong=%d\n", 13 sizeof (sss), __alignof__ (sss), 14 _offsetof (struct sss, f), _offsetof (struct sss, snd), 15 __alignof__ (sss.f), __alignof__ (sss.snd)); 16 return 0; 17 } 18