1 // { dg-do run  }
2 // InterViews (ibuild) requires this to work.
3 
4 extern "C" void exit(int);
5 
6 void *old;
7 
8 class c1
9 {
10   int i;
11 public:
c1()12   c1 () {}
13 };
14 
15 class c2
16 {
17   int j;
18 public:
c2()19   c2 () {}
20 };
21 
22 class c3 : public c1, public c2
23 {
24 public:
c3()25   c3 ()
26     {
27       old = this;
28       // printf("new object c3 at %x\n", (int)this); }
29     }
30 };
31 
f()32 c2* f ()
33 {
34   c2* n = new c3 ();
35   // printf ("new object c3 casted to c2 at %x\n", (int)n);
36   return n;
37 }
38 
main()39 int main ()
40 {
41   c3* o = (c3*)f ();
42   // printf("new object c3, upcasted from c2 at %x\n", (int)o);
43   // if old and o are not the same, fail the test case.
44   if (old != o)
45     exit(1);
46   return 0;
47 }
48