SYNTAX
------

C Syntax
^^^^^^^^

.. code-block:: c

    int MPI_Pack_size(int incount, MPI_Datatype datatype, MPI_Comm comm,
        int* size)

    int MPI_Pack_size_c(MPI_Count incount, MPI_Datatype datatype,
        MPI_Comm comm, MPI_Count* size)

Fortran Syntax
^^^^^^^^^^^^^^

.. code-block:: fortran

    USE MPI
    ! or the older form: INCLUDE 'mpif.h'
    MPI_PACK_SIZE(INCOUNT, DATATYPE, COMM, SIZE, IERROR)
    	INTEGER INCOUNT, DATATYPE, COMM, SIZE, IERROR

Fortran 2008 Syntax
^^^^^^^^^^^^^^^^^^^

.. code-block:: fortran

    USE mpi_f08
    MPI_Pack_size(incount, datatype, comm, size, ierror)
    	INTEGER, INTENT(IN) :: incount
    	TYPE(MPI_Datatype), INTENT(IN) :: datatype
    	TYPE(MPI_Comm), INTENT(IN) :: comm
    	INTEGER, INTENT(OUT) :: size
    	INTEGER, OPTIONAL, INTENT(OUT) :: ierror

    MPI_Pack_size(incount, datatype, comm, size, ierror)
    	INTEGER(KIND=MPI_COUNT_KIND), INTENT(IN) :: incount
    	TYPE(MPI_Datatype), INTENT(IN) :: datatype
    	TYPE(MPI_Comm), INTENT(IN) :: comm
    	INTEGER(KIND=MPI_COUNT_KIND), INTENT(OUT) :: size
    	INTEGER, OPTIONAL, INTENT(OUT) :: ierror
