Differece between Static and reinerpret cast [duplicate]

Possible Duplicate:

When should static_cast, dynamic_cast and reinterpret_cast be used?

class b
{
}
class d :public b
{
}

int main
{
 d* d_p = new d();
 b* b_p = static_cast<base*>(d_p);

 b* b_p = reinterpret_cast<base*>(d_p); // any difference will it make
 return 0;
}

So in the above example does static and reinterpret cast make any difference functionaly etc..? for me both are same in this scenario.

Yes, there will be a difference. You should check here