DMD can implicitly convert class pointer to the bool. Is it bug or terrible feature?

[bearophile]

deadalnix:

> http://i.imgur.com/H838hA9.jpg

AH ah, thank you :-) Eventually the official lint will need to 
ship inside the main D distributions.

While a lint is useful for some purposes (like verifying the D 
code doesn't have logically wrong indentations), there are some 
things that are probably better addressed in the language.

Bye,
bearophile