class A;

class B;

typedef boost::shared_ptr<A> pSharedPtrA;

typedef boost::shared_ptr<B> pSharedPtrB;

class B   {

public:

int memberB;

};

Class A   {

public:

 pSharedPtrB pMember;

};

Suppose i have one shared pointer of type pSharedPtrA pointing to an object of class A and the member variable pMember pinging to a valid object of class B.

Now if i pass the shared pointer of type pSharedPtrA to a function suppose Test_Func(pSharedPtrA):

void Test_Func(pSharedPtrA  pLocalA)

{

 pSharedPtrA ptrA =  boost::static_pointer_cast<A> (pLocalA)

 pSharedPtrB tmpB = boost::static_pointer_cast<B>(ptrA->pMember)

  Another_Func(tmpB)

}

Another_Func(pSharedPtrB pLocalB)

{

   int x = pLocalB->memberB; //Gives WRONG value

  pSharedPtrB   ptmp = boost::static_pointer_cast<B> (pLocalB)

  

  x = ptmp ->memberB; //Gives CORRECT Value

}

The problem is when typecast is not used then in function Another_Func(pSharedPtrB pLocalB), pLocalB->memberB is not giving the correct result but after typecast it is giving the correct results.

The inference is that in function Another_Func() data is preserved in the pLocalB but without typecast i am not able to access it.

Though i have not declared any virtual functions in above code but where we are having problem does contain the vritual functions. I dont know if it has any bearing on behavior observed.

I want to know why typecasting is required to get the correct result and why cant i access the members without typecasting.

Thanks and Regards

Deepak