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

[I've also read your other message from yesterday.] Am 26.10.2015 um 22:13 schrieb Allin Cottrell: > On Mon, 26 Oct 2015, Sven Schreiber wrote: > >> Am 26.10.2015 um 19:38 schrieb Allin Cottrell: >>> On Mon, 26 Oct 2015, Sven Schreiber wrote: >> >>> The above looks funny, I agree. However, it clearly corresponds to the >>> documentation of isnull(): >>> >>> "Returns 0 if name is the identifier for a currently defined object, be >>> it a scalar, a series, a matrix, list, string or bundle; otherwise >>> returns 1." Given the backwards-compatibility issues especially with 'null' as an established initializer for lists (less so for bundles), maybe the best solution is to rename isnull(), for example to isobj() -- or to be precise, 'isnull(X)' would be equivalent to '!isobj(X)'. The alias isnull() could be deprecated eventually. (And BTW/OT: perhaps 'isobj(b.X)' could also be an alias for 'inbundle(b, "X")'.)