Hi, Over the weekend I added some tests on 'undef' behaviour (t/builtins/undef.t):
These behave as expected: eval_is('undef * 2', undef, 'undef * 2'); eval_is('undef * undef', undef, 'undef * undef'); These don't (at least, according to my expectations...) eval_is('undef + 1', undef, 'undef + 1', :todo<bug>); # dies eval_is('1 + undef', undef, '1 + undef', :todo<bug>); # gives 1 eval_is('2 * undef', undef, '2 * undef', :todo<bug>); # gives 0 eval_is('undef xx 2', undef, 'undef xx 2', :todo<bug>); # dies I was hoping to figure out enough Haskell to think about how to fix them, but I have given up for the moment :-) Ade