1. #include 2. #include 3. using namespace std; 4. class base { virtual void dummy() {} }; 5. class derived: public base { int a; }; 6. int main () 7. { 8. try 9. { 10. base * pba = new derived; 11. base * pbb = new base; 12. derived * pd; 13. pd = dynamic_cast(pba); 14. if (pd == 0) 15. cout
Options:
A .  Null pointer on first type-cast
B .  Null pointer on second type-cast
C .  Exception
D .  None of the mentioned
Answer: Option B
In this program, We apply the dynamic cast to pd. Based on the value in the pd, it produces
the output. Output: $ g++ rtti.cpp $ a.out Null pointer on second type-cast
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