gcc/testsuite/gfortran.dg/move_alloc_9.f90

   1 ! { dg-do compile }
   2 !
   3 ! Test diagnostic for MOVE_ALLOC:
   4 ! FROM=type, TO=class is OK
   5 ! FROM=class, TO=type is INVALID
   6 !
   7 module m2
   8   type, abstract :: t2
   9   contains
  10     procedure(intf), deferred, nopass :: f
  11   end type t2
  12
  13   interface
  14     function intf()
  15       import
  16       class(t2), allocatable :: intf
  17     end function intf
  18   end interface
  19 end module m2
  20
  21 module m3
  22   use m2
  23   type, extends(t2) :: t3
  24   contains
  25     procedure,nopass :: f => my_f
  26   end type t3
  27 contains
  28    function my_f()
  29      class(t2), allocatable :: my_f
  30    end function my_f
  31 end module m3
  32
  33 subroutine my_test
  34 use m3
  35 type(t3), allocatable :: x
  36 class(t2), allocatable :: y
  37 call move_alloc (x, y)
  38 end subroutine my_test
  39
  40 program testmv1
  41   type bar
  42   end type
  43
  44   type, extends(bar) ::  bar2
  45   end type
  46
  47   class(bar), allocatable :: sm
  48   type(bar2), allocatable :: sm2
  49
  50   allocate (sm2)
  51   call move_alloc (sm,sm2) ! { dg-error "must be polymorphic if FROM is polymorphic" }
  52
  53   if (allocated(sm2)) STOP 1
  54   if (.not. allocated(sm)) STOP 2
  55 end program