SYNTAX
------

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

.. code-block:: fortran

    USE MPI
    ! or the older form: INCLUDE 'mpif.h'
    MPI_F_SYNC_REG(BUF)
    	<type> BUF(*)

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

.. code-block:: fortran

    USE mpi_f08
    MPI_F_sync_reg(buf)
    	TYPE(*), DIMENSION(..), ASYNCHRONOUS :: buf
