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! { dg-do run }

! { dg-require-effective-target fortran_large_real }

! Program to test the UNPACK intrinsic for large real type

program intrinsic_unpack

   implicit none

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

   real(kind=k), dimension(3,3) :: ark, brk

   complex(kind=k), dimension(3,3) :: ack, bck

   logical, dimension(3, 3) :: mask

   character(len=500) line1, line2

   integer i

   mask = reshape ((/.false.,.true.,.false.,.true.,.false.,.false.,&

                    &.false.,.false.,.true./), (/3, 3/));

   ark = reshape ((/1._k, 0._k, 0._k, 0._k, 1._k, 0._k, 0._k, 0._k, 1._k/), &

         (/3, 3/));

   brk = unpack ((/2._k, 3._k, 4._k/), mask, ark)

   if (any (brk .ne. reshape ((/1._k, 2._k, 0._k, 3._k, 1._k, 0._k, &

                               0._k, 0._k, 4._k/), (/3, 3/)))) &

      call abort

   write (line1,'(9F9.5)') brk

   write (line2,'(9F9.5)') unpack((/2._k, 3._k, 4._k/), mask, ark)

   if (line1 .ne. line2) call abort

   brk = -1._k

   brk = unpack ((/2._k, 3._k, 4._k/), mask, 0._k)

   if (any (brk .ne. reshape ((/0._k, 2._k, 0._k, 3._k, 0._k, 0._k, &

      0._k, 0._k, 4._k/), (/3, 3/)))) &

      call abort

   ack = reshape ((/1._k, 0._k, 0._k, 0._k, 1._k, 0._k, 0._k, 0._k, 1._k/), &

        (/3, 3/));

   bck = unpack ((/(2._k, 0._k), (3._k, 0._k), (4._k,   0._k)/), mask, ack)

   if (any (real(bck) .ne. reshape ((/1._k, 2._k, 0._k, 3._k, 1._k, 0._k, &

        0._k, 0._k, 4._k/), (/3, 3/)))) &

        call abort

   write (line1,'(18F9.5)') bck

   write (line2,'(18F9.5)') unpack((/(2._k, 0._k), (3._k, 0._k), (4._k,0._k)/), &

        mask, ack)

   if (line1 .ne. line2) call abort

end program