SYNTAX
------

C Syntax
^^^^^^^^

.. code-block:: c

    int MPI_Cart_sub(MPI_Comm comm, const int remain_dims[], MPI_Comm*
        newcomm)

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

.. code-block:: fortran

    USE MPI
    ! or the older form: INCLUDE 'mpif.h'
    MPI_CART_SUB(COMM, REMAIN_DIMS, NEWCOMM, IERROR)
    	INTEGER COMM, NEWCOMM, IERROR
    	LOGICAL REMAIN_DIMS(*)

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

.. code-block:: fortran

    USE mpi_f08
    MPI_Cart_sub(comm, remain_dims, newcomm, ierror)
    	TYPE(MPI_Comm), INTENT(IN) :: comm
    	LOGICAL, INTENT(IN) :: remain_dims(*)
    	TYPE(MPI_Comm), INTENT(OUT) :: newcomm
    	INTEGER, OPTIONAL, INTENT(OUT) :: ierror
