The ASSOCIATED functions returns false for the 4th test below. It
should return true. there have been a ton of interps and rewording
of the associated function. It's probably clearer to read
case (v) in the F2003 standard.
program try_mg0028
! fails on Windows XP
! gcc version 4.4.0 20080312 (experimental) [trunk revision 133139]
real tda2r(2,3)
call mg0028(tda2r, 1, 2, 3)
end
SUBROUTINE MG0028(TDA2R,nf1,nf2,nf3)
real, pointer :: TLA2L(:,:),TLA2L1(:,:)
real, target :: TDA2R(NF2,NF3)
logical LL(4)
TLA2L => TDA2R(NF2:NF1:-NF2,NF3:NF1:-NF2)
TLA2L1 => TLA2L
LL(1) = ASSOCIATED(TLA2L)
LL(2) = ASSOCIATED(TLA2L,TLA2L1)
LL(3) = ASSOCIATED(TLA2L,TDA2R)
LL(4) = ASSOCIATED(TLA2L1,TDA2R(2:2,3:1:-2)) !should be true
if (any(LL .neqv. (/ .true., .true., .false., .true./))) then
print *, LL
print *, shape(TLA2L1)
print *, shape(TDA2R(2:2,3:1:-2))
endif
END SUBROUTINE
C:\g_experiments\gfortran>gfortran m
g0028.f
C:\g_experiments\gfortran>a
T T F F
1 2
1 2
--
Summary: ASSOCIATED returns false when strides confusing
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: dick dot hendrickson at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35721
