4 class VB {  class
7   VB (int v) { n = v; }  in VB()  function in VB
8   VB (const VB& o) {  in VB()  function in VB
14 class D : public virtual VB {
17   D(int i1, int i2) : VB(i2) { j = i1; }  in D()
18   VB& vb() { return *(VB*)this; }  in vb()
19   const VB& vb() const { return *(const VB*)this; }  in vb()
22 class pD : private virtual VB {
25   pD(int i1, int i2) : VB(i2) { j = i1; }  in pD()
26   VB& vb() { return *(VB*)this; }  in vb()
27   const VB& vb() const { return *(const VB*)this; }  in vb()
34   VB *vb = &d.vb();  in main()
35   VB *pvb = &pd.vb();  in main()
42   catch (VB& vb) {  in main()
56   catch (VB& vb) {  in main()