gcc/testsuite/gfortran.dg/auto_char_dummy_array_1.f90

   1 ! { dg-do run }
   2 ! This tests the fix for pr15809 in which automatic character length,
   3 ! dummy, pointer arrays were broken.
   4 !
   5 ! contributed by Paul Thomas  <pault@gcc.gnu.org>
   6 !
   7 module global
   8   character(12), dimension(2), target :: t
   9 end module global
  10
  11 program oh_no_not_pr15908_again
  12   character(12), dimension(:), pointer :: ptr
  13
  14   nullify(ptr)
  15
  16   call a (ptr, 12)
  17   if (.not.associated (ptr) ) STOP 1
  18   if (any (ptr.ne."abc")) STOP 2
  19
  20   ptr => null ()              ! ptr points to 't' here.
  21   allocate (ptr(3))
  22   ptr = "xyz"
  23   call a (ptr, 12)
  24
  25   if (.not.associated (ptr)) STOP 3
  26   if (any (ptr.ne."lmn")) STOP 4
  27
  28   call a (ptr, 0)
  29
  30   if (associated (ptr)) STOP 5
  31
  32 contains
  33
  34   subroutine a (p, l)
  35     use global
  36     character(l), dimension(:), pointer :: p
  37     character(l), dimension(3)          :: s
  38
  39     s = "lmn"
  40
  41     if (l.ne.12) then
  42       deallocate (p)           ! ptr was allocated in main.
  43       p => null ()
  44       return
  45     end if
  46
  47     if (.not.associated (p)) then
  48       t = "abc"
  49       p => t
  50     else
  51       if (size (p,1).ne.3) STOP 6
  52       if (any (p.ne."xyz")) STOP 7
  53       p = s
  54     end if
  55   end subroutine a
  56
  57 end program oh_no_not_pr15908_again