gcc/testsuite/consistency.vlad/layout/c-int-2-c-double.cpp

   1 #include <stdio.h>
   2
   3 class c{
   4 public:
   5   int f;
   6 };
   7
   8 class c2{
   9 public:
  10   double f2;
  11 };
  12
  13
  14 static class sss: public c, public c2{
  15 public:
  16   int m;
  17 } sss;
  18
  19 #define _offsetof(st,f) ((char *)&((st *) 16)->f - (char *) 16)
  20
  21 int main (void) {
  22   printf ("++Class with int inhereting classes with int & double:\n");
  23   printf ("size=%d,align=%d\n", sizeof (sss), __alignof__ (sss));
  24   printf ("offset-f=%d,offset-f2=%d,offset-m=%d,\nalign-f=%d,align-f2=%d,align-m=%d\n",
  25           _offsetof (class sss, f), _offsetof (class sss, f2), _offsetof (class sss, m),
  26           __alignof__ (sss.f), __alignof__ (sss.f2), __alignof__ (sss.m));
  27   return 0;
  28 }