gdb/testsuite/gdb.cp/casts.cc

   1 #include <cstdint>
   2
   3 struct A
   4 {
   5   int a;
   6   A (int aa): a (aa) {}
   7 };
   8
   9 struct B: public A
  10 {
  11   int b;
  12   B (int aa, int bb): A (aa), b(bb) {}
  13 };
  14
  15
  16 struct Alpha
  17 {
  18   virtual void x() { }
  19 };
  20
  21 struct Gamma
  22 {
  23 };
  24
  25 struct Derived : public Alpha
  26 {
  27 };
  28
  29 struct VirtuallyDerived : public virtual Alpha
  30 {
  31 };
  32
  33 struct DoublyDerived : public VirtuallyDerived,
  34                        public virtual Alpha,
  35                        public Gamma
  36 {
  37 };
  38
  39 struct Left
  40 {
  41   int left;
  42 };
  43
  44 struct Right
  45 {
  46   int right;
  47 };
  48
  49 struct LeftRight : public Left, public Right
  50 {
  51 };
  52
  53 int
  54 main (int argc, char **argv)
  55 {
  56   A *a = new B(42, 1729);
  57   B *b = (B *) a;
  58   A &ar = *b;
  59   B &br = (B&)ar;
  60
  61   Derived derived;
  62   DoublyDerived doublyderived;
  63
  64   Alpha *ad = &derived;
  65   Alpha *add = &doublyderived;
  66
  67   LeftRight gd;
  68   gd.left = 23;
  69   gd.right = 27;
  70   unsigned long long gd_value = (unsigned long long) (std::uintptr_t)&gd;
  71   unsigned long long r_value = (unsigned long long) (Right *) &gd;
  72
  73   return 0;  /* breakpoint spot: casts.exp: 1 */
  74 }