------- Comment #3 from janus at gcc dot gnu dot org 2010-07-22 21:44 -------
Here is an even more elementary example which shows that there is a problem for
allocatable scalars, already without any polymorphic variables:
implicit none
integer, allocatable :: afab1,afab2
allocate(afab1)
afab1 = irand()
print *,afab1
call move_alloc(afab1, afab2)
print *,afab2
print *,allocated(afab2)
print *,allocated(afab1)
end
This directly segfaults on move_alloc:
16807
Segmentation fault
The problem is that _gfortran_move_alloc expects two array descriptors as
arguments, but allocatable scalars have none. Therefore we probably need
something like '_gfortran_move_alloc_scalar'.
For classes we will probably have to add a reference to the $data component
before passing them to move_alloc.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45004
