gcc/testsuite/consistency.vlad/layout/s-char-zf-int.c

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