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! Copyright 2015-2016 Free Software Foundation, Inc.
!
! This program is free software; you can redistribute it and/or modify
! it under the terms of the GNU General Public License as published by
! the Free Software Foundation; either version 3 of the License, or
! (at your option) any later version.
!
! This program is distributed in the hope that it will be useful,
! but WITHOUT ANY WARRANTY; without even the implied warranty of
! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
! GNU General Public License for more details.
!
! You should have received a copy of the GNU General Public License
! along with this program. If not, see <http://www.gnu.org/licenses/>.
program vla
real, allocatable :: vla1 (:)
real, target, allocatable :: vla2(:, :)
real, pointer :: pvla2 (:, :)
logical :: l
nullify (pvla2)
allocate (vla1 (5)) ! vla1-not-allocated
l = allocated(vla1) ! vla1-allocated
vla1(:) = 1
vla1(2) = 42 ! vla1-filled
vla1(4) = 24
deallocate (vla1) ! vla1-modified
l = allocated(vla1) ! vla1-deallocated
allocate (vla2 (5, 2))
vla2(:, :) = 2
pvla2 => vla2 ! pvla2-not-associated
l = associated(pvla2) ! pvla2-associated
pvla2(2, 1) = 42
pvla2 => null()
l = associated(pvla2) ! pvla2-set-to-null
end program vla
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