SYNTAX
------

C Syntax
^^^^^^^^

.. code-block:: c

    int MPI_Group_rank(MPI_Group group, int* rank)

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

.. code-block:: fortran

    USE MPI
    ! or the older form: INCLUDE 'mpif.h'
    MPI_GROUP_RANK(GROUP, RANK, IERROR)
    	INTEGER GROUP, RANK, IERROR

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

.. code-block:: fortran

    USE mpi_f08
    MPI_Group_rank(group, rank, ierror)
    	TYPE(MPI_Group), INTENT(IN) :: group
    	INTEGER, INTENT(OUT) :: rank
    	INTEGER, OPTIONAL, INTENT(OUT) :: ierror
