[algogeeks] output

[Saurabh]

Can any one explain why the following program not giving the correct output.

#include <iostream>
using namespace std;
class a
{
       int x;

       public:
               void set(int y)
               {
                               x=y;
               }
               int get()
               {
                      return x;
               }

};
void f(a * b)
{
     b = new a();
     b->set(5);
}
int main()
{
     a *a1;
     f(a1);
     cout<<"x = "<<a1->get();
    return 0;
}



-- 
Regards
Saurabh

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