! Copyright 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 pointers

  integer, target, allocatable, dimension (:) :: intvla
  integer, pointer, dimension (:) :: intvlap
  
  nullify (intvlap)
 
  intvlap => intvla
 
  allocate (intvla(10))
  intvla(:) = 2
  intvla(4) = 4
  intvlap => intvla
 
  intvla(1) = intvla(1) + 1 ! After value assignment

end program pointers