Conversion of void*&

[Manisha Mirajkar]

I need to convert a void *& varibale from a C function to a perl
variable?And later use this value to call another C function.

eg :
My C functiona are -  MyCFunc(void *& arg)
                              -  MyCFuncCalled(void *p)

XS File :                    void*& MyXSFunc()
                                 CODE :
                                 void *& arg;
                                 RETVAL = MyCFunc(arg);
                                 OUTPUT :
                                 RETVAL

                                void MyXSFuncCalled(p)
                                        void *p
                                CODE :
                                        MyCFuncCalled(p);

How do I  typemap a void*& ?

Thanks,
Manisha