[phobos] Fw: cast(bool) vs. opUnary!"!"

[Steve Schveighoffer]

D'oh!

Sorry, this went to the old list.

-Steve



----- Forwarded Message ----
> From: Steve Schveighoffer <schveiguy at yahoo.com>
> To: Phobos <phobos at erdani.com>
> Sent: Tue, March 9, 2010 9:30:16 AM
> Subject: cast(bool) vs. opUnary!"!"
> 
> In the latest dmd 2.041, cast!T was added, and if statements were changed to do:
> 
> if(s) => if(cast!bool(s))
> 
> What happened to if translating to:
> 
> if(!!s)
> 
> which translates to ! opUnary!("!).  Hm... that's a lot of !'s :)
> 
> I thought that was the plan, at least it was in the book.  Is that going away?
> 
> It does make more sense to use cast(bool) because opUnary!"!" could potentially 
> return a non-bool value.
> 
> -Steve