gcc/testsuite/g++.dg/inherit/thunk1.C

   1 // { dg-do run { target i?86-*-* x86_64-*-* s390*-*-* alpha*-*-* ia64-*-* sparc*-*-* } }
   2
   3 #include <stdarg.h>
   4
   5 extern "C" void abort ();
   6
   7 struct A {
   8   virtual void f (int, ...) {}
   9   int i;
  10 };
  11
  12 struct B : virtual public A {
  13 };
  14
  15 struct C : public B {
  16   C ();
  17   virtual void f (int, ...);
  18 };
  19
  20 extern C* cp;
  21
  22 C::C () { cp = this; }
  23
  24 void C::f (int i, ...) {
  25   if (this != cp)
  26     abort ();
  27   va_list ap;
  28   if (i != 3)
  29     abort ();
  30   va_start (ap, i);
  31   if (va_arg (ap, int) != 7)
  32     abort ();
  33   va_end (ap);
  34 }
  35
  36 C* cp = new C;
  37
  38 int main ()
  39 {
  40   cp->f (3, 7);
  41 }