ESMF_ArrayBundleEQ Function

  impure elemental function ESMF_ArrayBundleEQ(arraybundle1, arraybundle2)
! 
! !RETURN VALUE:
    logical :: ESMF_ArrayBundleEQ

! !ARGUMENTS:
    type(ESMF_ArrayBundle), intent(in) :: arraybundle1
    type(ESMF_ArrayBundle), intent(in) :: arraybundle2

! !DESCRIPTION:
!   Test if both {\tt arraybundle1} and {\tt arraybundle2} alias the same ESMF ArrayBundle 
!   object.
!
!EOPI
!-------------------------------------------------------------------------------

    ESMF_INIT_TYPE abinit1, abinit2
    integer :: localrc1, localrc2
    logical :: lval1, lval2

    ! Use the following logic, rather than "ESMF-INIT-CHECK-DEEP", to gain 
    ! init checks on both args, and in the case where both are uninitialized,
    ! to distinguish equality based on uninitialized type (uncreated,
    ! deleted).

    ! TODO: Consider moving this logic to C++: use Base class? status?
    !       Or replicate logic for C interface also.

    ! check inputs
    abinit1 = ESMF_ArrayBundleGetInit(arraybundle1)
    abinit2 = ESMF_ArrayBundleGetInit(arraybundle2)

    ! TODO: this line must remain split in two for SunOS f90 8.3 127000-03
    if (abinit1 .eq. ESMF_INIT_CREATED .and. &
      abinit2 .eq. ESMF_INIT_CREATED) then
      ESMF_ArrayBundleEQ = arraybundle1%this .eq. arraybundle2%this
    else
      ESMF_ArrayBundleEQ = ESMF_FALSE
    endif

  end function ESMF_ArrayBundleEQ