[Gretl-devel] isnull with null list isn't true

Hi, a null list somehow isn't a null object to gretl: <hansl> open denmark # dummy dataset list lh = null if isnull(lh) print "yep" # doesn't get printed endif </hansl> I actually can understand conceptually that the list 'lh' is "empty" rather than non-existing, but then I think either there should be this (new) keyword 'empty' for lists, or isnull(lh) should return True/1 in this case. I also know (and used the fact) that we have 'nelem(lh) == 0' to achieve the check I want to have, but still. thanks, sven