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! { dg-do compile }
!
! PR fortran/97242
!
implicit none
type t
integer, allocatable :: A(:,:,:)
integer :: D(5,5,5)
end type t
type(t), target :: B(5)
integer, pointer, contiguous :: P(:,:,:)
integer, target :: C(5,5,5)
integer :: i
i = 1
! OK: contiguous
P => B(i)%A
P => B(i)%A(:,:,:)
P => C
P => C(:,:,:)
call foo (B(i)%A)
call foo (B(i)%A(:,:,:))
call foo (C)
call foo (C(:,:,:))
! Invalid - not contiguous
! "If the pointer object has the CONTIGUOUS attribute, the pointer target shall be contiguous."
! → known to be noncontigous (not always checkable, however)
P => B(i)%A(:,::3,::4) ! <<< Unknown as (1:2:3,1:3:4) is contiguous and has one element.
P => B(i)%D(:,::2,::2) ! { dg-error "Assignment to contiguous pointer from non-contiguous target" }
P => C(::2,::2,::2) ! { dg-error "Assignment to contiguous pointer from non-contiguous target" }
! This following is stricter:
! C1541 The actual argument corresponding to a dummy pointer with the
! CONTIGUOUS attribute shall be simply contiguous (9.5.4).
call foo (B(i)%A(:,::3,::4)) ! { dg-error "must be simply contiguous" }
call foo (C(::2,::2,::2)) ! { dg-error "must be simply contiguous" }
contains
subroutine foo(Q)
integer, pointer, intent(in), contiguous :: Q(:,:,:)
end subroutine foo
end
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