The Joy of Signalling NaNs! (A compiler patch)

[Nick Sabalausky]

"Mason Green" <mason.green at gmail.com> wrote in message 
news:gpt70t$2b5t$1 at digitalmars.com...
> Don wrote:
>> Yup, I've had many NaN nightmares. Whenever you have an uninitialized 
>> variable in C++ there's about a 1% chance that it's a NaN. That's really 
>> fun to track down. NOT.
>> I think it's criminal that this feature has been in hardware since *** 
>> 1980 *** and not made available even in systems languages.
>
> I second adding this feature to D.  I've spent many, many hours chasing 
> NaN bugs when porting box2d from c++.  Most of the time, it came down to 
> simply forgetting to initialize a float somewhere. I actually make a post 
> on dsource a few days ago:
>
> http://www.dsource.org/forums/viewtopic.php?t=4501&sid=2e8f71e52efbcece43a63cbb261e8706
>

Warnings or errors on the use of uninitialized variables would also solve 
that problem *wink* *wink* *nudge* *nudge*.