gcc/testsuite/gfortran.dg/proc_ptr_comp_3.f90

   1 ! { dg-do compile }
   2 !
   3 ! PR39630: Fortran 2003: Procedure pointer components.
   4 !
   5 ! Probing some error messages.
   6 !
   7 ! Contributed by Janus Weil <janus@gcc.gnu.org>
   8
   9 implicit none
  10
  11 interface
  12  subroutine sub
  13  end subroutine
  14 end interface
  15
  16 external :: aaargh
  17
  18 type :: t
  19   procedure(), pointer, nopass :: ptr1
  20   procedure(real), pointer, nopass :: ptr2
  21   procedure(sub), pointer, nopass :: ptr3
  22   procedure(), pointer, nopass ptr4              ! { dg-error "Expected '::'" }
  23   procedure(), pointer, nopass, pointer :: ptr5  ! { dg-error "Duplicate" }
  24   procedure, pointer, nopass :: ptr6             ! { dg-error "Syntax error" }
  25   procedure(), nopass :: ptr8                    ! { dg-error "POINTER attribute is required" }
  26   procedure(pp), pointer, nopass :: ptr9         ! { dg-error "declared in a later PROCEDURE statement" }
  27   procedure(aaargh), pointer, nopass :: ptr10    ! { dg-error "must be explicit" }
  28   real :: y
  29 end type t
  30
  31 type,bind(c) :: bct                   ! { dg-error "BIND.C. derived type" }
  32   procedure(), pointer,nopass :: ptr  ! { dg-error "cannot be a member of|may not be C interoperable" }
  33 end type bct
  34
  35 procedure(sub), pointer :: pp
  36
  37 type(t) :: x
  38
  39 x%ptr2 => x       ! { dg-error "Invalid procedure pointer assignment" }
  40
  41 x => x%ptr2       ! { dg-error "Non-POINTER in pointer association context" }
  42
  43 print *, x%ptr1() ! { dg-error "attribute conflicts with" }
  44 call x%ptr2()     ! { dg-error "attribute conflicts with" }
  45 print *,x%ptr3()  ! { dg-error "attribute conflicts with" }
  46
  47 call x%y          ! { dg-error "Expected type-bound procedure or procedure pointer component" }
  48
  49 end
  50