gcc/testsuite/gfortran.dg/proc_ptr_2.f90

! { dg-do compile }
!
! checking invalid code for PROCEDURE POINTERS
!
! Contributed by Janus Weil <janus@gcc.gnu.org>

PROCEDURE(REAL), POINTER :: ptr
PROCEDURE(REAL), SAVE    :: noptr    ! { dg-error "attribute conflicts with" }
REAL :: x

 abstract interface
   subroutine bar(a)
     integer :: a
   end subroutine bar
 end interface

ptr => cos(4.0)        ! { dg-error "Invalid procedure pointer assignment" }
ptr => x               ! { dg-error "Invalid procedure pointer assignment" }
ptr => sin(x)          ! { dg-error "Invalid procedure pointer assignment" }

ptr => bar             ! { dg-error "is invalid in procedure pointer assignment" }

ALLOCATE(ptr)          ! { dg-error "must be ALLOCATABLE" }

end