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! { dg-do run }

! { dg-require-effective-target fortran_large_real }

! Test that the internal pack and unpack routines work OK

! for our large real type.

program main

  implicit none

  integer,parameter :: k = selected_real_kind (precision (0.0_8) + 1)

  real(kind=k), dimension(3) :: rk

  complex(kind=k), dimension(3) :: ck

  rk = (/ -1.0_k, 1.0_k, -3.0_k /)

  call sub_rk(rk(1:3:2))

  if (any(rk /= (/ 3.0_k, 1.0_k, 2.0_k/))) call abort

  ck = (/ (-1.0_k, 0._k), (1.0_k, 0._k), (-3.0_k, 0._k) /)

  call sub_ck(ck(1:3:2))

  if (any(real(ck) /= (/ 3.0_k, 1.0_k, 2.0_k/))) call abort

  if (any(aimag(ck) /= 0._k)) call abort

end program main

subroutine sub_rk(r)

  implicit none

  integer,parameter :: k = selected_real_kind (precision (0.0_8) + 1)

  real(kind=k), dimension(2) :: r

  if (r(1) /= -1._k) call abort

  if (r(2) /= -3._k) call abort

  r(1) = 3._k

  r(2) = 2._k

end subroutine sub_rk

subroutine sub_ck(r)

  implicit none

  integer,parameter :: k = selected_real_kind (precision (0.0_8) + 1)

  complex(kind=k), dimension(2) :: r

  if (r(1) /= (-1._k,0._k)) call abort

  if (r(2) /= (-3._k,0._k)) call abort

  r(1) = 3._k

  r(2) = 2._k

end subroutine sub_ck