MPI_Unpack_external

int MPI_Unpack_external(char *, void *, MPI_Aint, MPI_Aint *, void *, int, MPI_Datatype);int MPI_Win_create_errhandler(MPI_Win_errhandler_fn *, MPI_Errhandler *);
Unpacks the message into the specified receive buffer from the specified packed buffer, using the external32 data format.