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       #Post#: 22--------------------------------------------------
       Output of the C++ program
       By: ravu Date: August 15, 2012, 11:18 am
       ---------------------------------------------------------
       #include <iostream>
       using namespace std;
       
       class Base
       {
       public:
       virtual void fun ( int x = 0 )
       {
       cout << "Base::fun(), x = " << x << endl;
       }
       };
       
       class Derived : public Base
       {
       public:
       virtual void fun ( int x )
       {
       cout << "Derived::fun(), x = " << x << endl;
       }
       };
       
       
       int main()
       {
       Derived d1;
       Base *bp = &d1;
       bp->fun();
       return 0;
       }
       #Post#: 23--------------------------------------------------
       Re: Output of the C++ program
       By: dinesh Date: August 16, 2012, 9:51 am
       ---------------------------------------------------------
       since the base class pointer is pointing to a derived class
       object and the function is virtual, the derived class method
       will be invoked but initialization is done by using base class
       value at compile time.
       For more details:
  HTML https://www.securecoding.cert.org/confluence/display/cplusplus/OOP04-CPP.+Prefer+not+to+give+virtual+functions+default+argument+initializers
       #Post#: 57--------------------------------------------------
       Re: Output of the C++ program
       By: kpr29 Date: August 25, 2012, 3:51 am
       ---------------------------------------------------------
       #include <iostream>
       using namespace std;
       
       class Base
       {
       public:
       virtual void fun ( int x = 0)
       {
       cout << "Base::fun(), x = " << x << endl;
       }
       };
       
       class Derived : public Base
       {
       public:
       virtual void fun ( int x = 10 ) // NOTE THIS CHANGE
       {
       cout << "Derived::fun(), x = " << x << endl;
       }
       };
       
       
       int main()
       {
       Derived d1;
       Base *bp = &d1;
       bp->fun();
       return 0;
       }
       What is the output of the above program. I want the answer first
       then expalnation.
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