SYNTAX
------

C Syntax
^^^^^^^^

.. code-block:: c

    int MPI_Cart_shift(MPI_Comm comm, int direction, int disp, int*
        rank_source, int* rank_dest)

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

.. code-block:: fortran

    USE MPI
    ! or the older form: INCLUDE 'mpif.h'
    MPI_CART_SHIFT(COMM, DIRECTION, DISP, RANK_SOURCE, RANK_DEST, IERROR)
    	INTEGER COMM, DIRECTION, DISP, RANK_SOURCE, RANK_DEST, IERROR

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

.. code-block:: fortran

    USE mpi_f08
    MPI_Cart_shift(comm, direction, disp, rank_source, rank_dest, ierror)
    	TYPE(MPI_Comm), INTENT(IN) :: comm
    	INTEGER, INTENT(IN) :: direction, disp
    	INTEGER, INTENT(OUT) :: rank_source, rank_dest
    	INTEGER, OPTIONAL, INTENT(OUT) :: ierror
