DT::Set count() currently returns "undef" on error, and "0" for empty sets.
Should it return "zero-but-true" (0e0) for empty sets? Such that you could write: $count = $set->count or die "can't count"; instead of: $count = $set->count; die "can't count" unless defined $count; - Flavio S. Glock -- DT::Set POD --- =item * count Returns a count of C<DateTime> objects in the set. .. when C<count()> operates on large recurrence sets, it will return at most approximately C<200>. For larger sets, and for I<infinite> sets, C<count()> will return C<undef>. Please note that this is explicitly not a scalar zero, since a zero count is a valid return value for empty sets! .. -----------------
