gdb/testsuite/gdb.cp/virtbase.cc

   1 // This first batch of classes are for PR 11226.
   2 namespace mc {
   3   class Base {
   4   protected:
   5     int x;
   6
   7   public:
   8     Base(void) { x = 2; };
   9   };
  10 }
  11
  12 namespace ph {
  13   class Middle: public virtual mc::Base {
  14   protected:
  15     int y;
  16
  17   public:
  18     Middle(void): mc::Base() { y = 3; };
  19
  20     int get_y(void)
  21     {
  22       return y;                 // breakpoint 1
  23     };
  24   };
  25
  26   class Derived: public virtual Middle {
  27   protected:
  28     int z;
  29
  30   public:
  31     Derived(void): Middle() { z = 4; };
  32
  33     int get_z(void)
  34     {
  35       return z;                 // breakpoint 2
  36     };
  37   };
  38 }
  39
  40 // These classes are for PR 9629.
  41 struct A {};
  42 struct B : virtual A {};
  43
  44 struct C {int v; C() {v=11;};};
  45 struct D:virtual C{};
  46
  47 class E:B,D{};
  48
  49 // These classes are for another regression test, from
  50 // https://bugzilla.redhat.com/show_bug.cgi?id=560741
  51
  52 class RHA
  53 {
  54 public:
  55   RHA() : mA(0xaaaaaaaa) {}
  56   virtual void a() = 0;
  57   int mA;
  58 };
  59
  60 class RHB
  61 {
  62 public:
  63   RHB() : mB(0xbbbbbbbb) {}
  64   virtual void b() = 0;
  65   int mB;
  66 };
  67
  68 class RHC : public RHA,
  69           public RHB
  70 {
  71 public:
  72   RHC() : RHA(), RHB() {}
  73   virtual void a() {}
  74   virtual void b() {}
  75 };
  76
  77 class RTTI_base
  78 {
  79 public:
  80   virtual ~RTTI_base() {}
  81 };
  82
  83 class RTTI_data
  84 {
  85 public:
  86   RTTI_base base;
  87   int data;
  88   RTTI_data() : data(1) {}
  89 };
  90
  91 /* These classes are for testing pointer adjustment when printing a
  92    pointer into a virtual base, with print object on.  */
  93 struct VirtualBase {
  94   int x;
  95
  96   virtual ~VirtualBase() {}
  97 };
  98
  99 struct VirtualMiddleA : public virtual VirtualBase {
 100   /* Make sure the vbase offset of Virtual::VirtualBaseB is larger
 101      than what fits in one byte.  */
 102   int y[300];
 103
 104   virtual ~VirtualMiddleA() {}
 105 };
 106
 107 struct VirtualMiddleB : public virtual VirtualBase {
 108   int y;
 109
 110   virtual ~VirtualMiddleB() {}
 111 };
 112
 113 struct Virtual : public virtual VirtualMiddleA, public virtual VirtualMiddleB {
 114   int z;
 115
 116   virtual ~Virtual() {}
 117 };
 118
 119 Virtual virtual_o;
 120 VirtualMiddleB *virtual_middle_b = &virtual_o;
 121
 122 int main() {
 123   ph::Derived tst;
 124   tst.get_y();
 125   tst.get_z();
 126
 127   E *e = new E;
 128   RHB *b = new RHC();
 129   RTTI_data rtti_data;
 130
 131   return 0;                     // breakpoint 3
 132 }