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! { dg-do compile }

!

! PR 46662: [OOP] gfortran accepts "CALL polymorphic%abstract_type%ppc()"

!

! Contributed by Wolfgang Kilian 

! cf. http://groups.google.com/group/comp.lang.fortran/browse_thread/thread/a0857fa4a692d518

module types

  implicit none

  type, abstract :: base_t

     integer :: i = 0

     procedure(base_write_i), pointer :: write_procptr

   contains

     procedure :: write_i => base_write_i

  end type base_t

  type, extends (base_t) :: t

  end type t

contains

  subroutine base_write_i (obj)

    class (base_t), intent(in) :: obj

    print *, obj%i

  end subroutine base_write_i

end module types

program main

  use types

  implicit none

  type(t) :: obj

  print *, "Direct printing"

  obj%i = 1

  print *, obj%i

  print *, "Direct printing via parent"

  obj%base_t%i = 2

  print *, obj%base_t%i

  print *, "Printing via TBP"

  obj%i = 3

  call obj%write_i

  print *, "Printing via parent TBP"

  obj%base_t%i = 4

  call obj%base_t%write_i      ! { dg-error "is of ABSTRACT type" }

  print *, "Printing via OBP"

  obj%i = 5

  obj%write_procptr => base_write_i

  call obj%write_procptr

  print *, "Printing via parent OBP"

  obj%base_t%i = 6

  obj%base_t%write_procptr => base_write_i

  call obj%base_t%write_procptr               ! { dg-error "is of ABSTRACT type" }

end program main

! { dg-final { cleanup-modules "types" } }