Re: Should undefined behavior be encouraged in Emacs?

[Andreas Röhler]

Am 03.10.2011 05:11, schrieb Stefan Monnier:
> > The argument given for undefined behavior is that it simplifies
> > maintenance of Emacs internals.
>
> I like to keep some corner of the behavior undefined, when I think
> that user code that depends on such details is undesirable (e.g. return
> values of primitives which are only called for side-effects).
>
>
>          Stefan

Hi,

my bet: undefined behavior sources bugs, makes maintenance difficult.

Design at the user level certainly deserves a separate approach. It's up 
to implement convenient error-handling than rather than undefined behavior.

Cheers,

Andreas