calling mem ber function by object pointer

[Rajesh1978]

Hi,
I have the following piece of code.

#include<iostream>
using namespace std;

class Test
{
        public:
                Test(){cout<<"Test"<<endl;}
                void fun()
                {
                        int i=5;
                        cout<<"fun"<<i<<endl;
                }
};
int main()
{
        Test *ptr = NULL;
        ptr->fun();
        return 0;
}

compiled with g++.
Executing this give output fun5.

It is correct? I have not allocated any object and so this pointer is not created.
Then how it is able to run and call the function