gcc/testsuite/consistency.vlad/layout/s-double-ptrdiff_t.c

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