Implicit fall through not detected (Example from lex.html)

[bearophile via Digitalmars-d-learn]

Andre:

> I am also not really happy with the actual behavor (w / wi 
> switch needed)

You shall always compile your D code with warnings active, unless 
you need them disabled for some real reason.

Eventually the fall through warning will become a deprecation and 
then an error. It's meant to be an error, but in D we introduce 
errors slowly.

Bye,
bearophile