Thanks for the answer -:)

On Thu, Jul 21, 2011 at 6:09 PM, Kashyap Krishnakumar
<kashyap...@gmail.com>wrote:

> You can also do
>
> void f(a ** b)
> {
>      (*b) = new a();
>      (*b)->set(5);
> }
> int main()
> {
>      a *a1;
>      f(&a1);
>      cout<<"x = "<<a1->get();
>     return 0;
> }
>
> The logic behind this is the basic difference between call by value and
> call by reference :-) In your original code, the changes in b will not
> reflect in a. In C you achieve it by using double pointers, and in C++ you
> can achieve it by using the & operator! :-)
>
> --
> Kashyap.K,
> III year, B.E. CSE,
> College of Engineering Guindy,
> Anna University,
> Chennai.
> --
> If you've never failed, you've never lived!
>
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-- 
Regards  n Luv
Saurabh Badhai

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