gcc/testsuite/gfortran.dg/associated_target_2.f90

   1 ! { dg-do run }
   2 !
   3 ! PR fortran/35721
   4 !
   5 ! ASSOCIATED(ptr, trgt) should return true if
   6 ! the same storage units (in the same order)
   7 ! gfortran was returning false if the strips
   8 ! were different but only one (the same!) element
   9 ! was present.
  10 !
  11 ! Contributed by Dick Hendrickson
  12 !
  13       program try_mg0028
  14       implicit none
  15       real  tda2r(2,3)
  16
  17       call       mg0028(tda2r,  1,  2,  3)
  18
  19       CONTAINS
  20
  21       SUBROUTINE MG0028(TDA2R,nf1,nf2,nf3)
  22       integer        ::  nf1,nf2,nf3
  23       real, target   ::  TDA2R(NF2,NF3)
  24       real, pointer  ::  TLA2L(:,:),TLA2L1(:,:)
  25       logical LL(4)
  26       TLA2L => TDA2R(NF2:NF1:-NF2,NF3:NF1:-NF2)
  27       TLA2L1 => TLA2L
  28       LL(1) = ASSOCIATED(TLA2L)
  29       LL(2) = ASSOCIATED(TLA2L,TLA2L1)
  30       LL(3) = ASSOCIATED(TLA2L,TDA2R)
  31       LL(4) = ASSOCIATED(TLA2L1,TDA2R(2:2,3:1:-2))  !should be true
  32
  33       if (any(LL .neqv. (/ .true., .true., .false., .true./))) then
  34         print *, LL
  35         print *, shape(TLA2L1)
  36         print *, shape(TDA2R(2:2,3:1:-2))
  37         stop
  38       endif
  39
  40       END SUBROUTINE
  41       END PROGRAM