gcc/testsuite/gfortran.dg/pointer_remapping_9.f90

   1 ! { dg-do run }
   2 !
   3 ! PR fortran/61138
   4 ! Wrong code with pointer-bounds remapping
   5 !
   6 ! Contributed by Tobias Burnus <burnus@net-b.de>
   7
   8 implicit none
   9 integer, target :: tgt(10)
  10 integer, target, allocatable :: tgt2(:)
  11 integer, pointer :: ptr(:)
  12
  13 tgt = [1,2,3,4,5,6,7,8,9,10]
  14 tgt2 = [1,2,3,4,5,6,7,8,9,10]
  15
  16
  17 ptr(-5:) => tgt(5:)  ! Okay
  18
  19 if (size(ptr) /= 6 .or. lbound(ptr,1) /= -5) STOP 1
  20 if (any (ptr /= [5,6,7,8,9,10])) STOP 2
  21
  22
  23 ptr(-5:) => tgt2(5:)  ! wrongly associates the whole array
  24
  25 print '(*(i4))', size(ptr), lbound(ptr)
  26 print '(*(i4))', ptr
  27
  28 if (size(ptr) /= 6 .or. lbound(ptr,1) /= -5) STOP 3
  29 if (any (ptr /= [5,6,7,8,9,10])) STOP 4
  30 end
  31