gdb/testsuite/gdb.cp/casts.cc

   1 struct A
   2 {
   3   int a;
   4   A (int aa): a (aa) {}
   5 };
   6
   7 struct B: public A
   8 {
   9   int b;
  10   B (int aa, int bb): A (aa), b(bb) {}
  11 };
  12
  13
  14 struct Alpha
  15 {
  16   virtual void x() { }
  17 };
  18
  19 struct Gamma
  20 {
  21 };
  22
  23 struct Derived : public Alpha
  24 {
  25 };
  26
  27 struct VirtuallyDerived : public virtual Alpha
  28 {
  29 };
  30
  31 struct DoublyDerived : public VirtuallyDerived,
  32                        public virtual Alpha,
  33                        public Gamma
  34 {
  35 };
  36
  37 int
  38 main (int argc, char **argv)
  39 {
  40   A *a = new B(42, 1729);
  41   B *b = (B *) a;
  42   A &ar = *b;
  43   B &br = (B&)ar;
  44
  45   Derived derived;
  46   DoublyDerived doublyderived;
  47
  48   Alpha *ad = &derived;
  49   Alpha *add = &doublyderived;
  50
  51   return 0;  /* breakpoint spot: casts.exp: 1 */
  52 }