gcc/testsuite/consistency.vlad/layout/c-double-1-c-float.cpp

   1 #include <stdio.h>
   2
   3 class c{
   4 public:
   5   double f;
   6 };
   7
   8
   9 static class sss: public c{
  10 public:
  11   float m;
  12 } sss;
  13
  14 #define _offsetof(st,f) ((char *)&((st *) 16)->f - (char *) 16)
  15
  16 int main (void) {
  17   printf ("++Class with float inhereting class with double:\n");
  18   printf ("size=%d,align=%d\n", sizeof (sss), __alignof__ (sss));
  19   printf ("offset-double=%d,offset-float=%d,\nalign-double=%d,align-float=%d\n",
  20           _offsetof (class sss, f), _offsetof (class sss, m),
  21           __alignof__ (sss.f), __alignof__ (sss.m));
  22   return 0;
  23 }