SYNTAX
------

C Syntax
^^^^^^^^

.. code-block:: c

    int MPI_Op_commutative(MPI_Op op, int* commute)

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

.. code-block:: fortran

    USE MPI
    ! or the older form: INCLUDE 'mpif.h'
    MPI_OP_COMMUTATIVE(OP, COMMUTE, IERROR)
    	INTEGER OP, IERROR
    	LOGICAL COMMUTE

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

.. code-block:: fortran

    USE mpi_f08
    MPI_Op_commutative(op, commute, ierror)
    	TYPE(MPI_Op), INTENT(IN) :: op
    	LOGICAL, INTENT(OUT) :: commute
    	INTEGER, OPTIONAL, INTENT(OUT) :: ierror
