//Status has to stay in C, as its fields are public.
//So status class only defines static methods to handle the C struct.
class Status{
public:
static void empty(MPI_Status * status);
//Status has to stay in C, as its fields are public.
//So status class only defines static methods to handle the C struct.
class Status{
public:
static void empty(MPI_Status * status);
-static void set_elements (MPI_Status * status, MPI_Datatype , int count);
-static int get_count(MPI_Status * status, MPI_Datatype datatype);
+static void set_elements(MPI_Status* status, const Datatype*, int count);
+static int get_count(const MPI_Status* status, const Datatype* datatype);