SYNTAX
------

C Syntax
^^^^^^^^

.. code-block:: c

    int MPI_Graph_neighbors(MPI_Comm comm, int rank, int maxneighbors,
        int neighbors[])

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

.. code-block:: fortran

    USE MPI
    ! or the older form: INCLUDE 'mpif.h'
    MPI_GRAPH_NEIGHBORS(COMM, RANK, MAXNEIGHBORS, NEIGHBORS, IERROR)
    	INTEGER COMM, RANK, MAXNEIGHBORS, NEIGHBORS(*), IERROR

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

.. code-block:: fortran

    USE mpi_f08
    MPI_Graph_neighbors(comm, rank, maxneighbors, neighbors, ierror)
    	TYPE(MPI_Comm), INTENT(IN) :: comm
    	INTEGER, INTENT(IN) :: rank, maxneighbors
    	INTEGER, INTENT(OUT) :: neighbors(maxneighbors)
    	INTEGER, OPTIONAL, INTENT(OUT) :: ierror
