MPI_CALL(XBT_PUBLIC int, MPI_Type_size, (MPI_Datatype datatype, int* size));
MPI_CALL(XBT_PUBLIC int, MPI_Type_size_x, (MPI_Datatype datatype, MPI_Count* size));
MPI_CALL(XBT_PUBLIC int, MPI_Type_get_extent, (MPI_Datatype datatype, MPI_Aint* lb, MPI_Aint* extent));
MPI_CALL(XBT_PUBLIC int, MPI_Type_size, (MPI_Datatype datatype, int* size));
MPI_CALL(XBT_PUBLIC int, MPI_Type_size_x, (MPI_Datatype datatype, MPI_Count* size));
MPI_CALL(XBT_PUBLIC int, MPI_Type_get_extent, (MPI_Datatype datatype, MPI_Aint* lb, MPI_Aint* extent));