The Joy of Signalling NaNs! (A compiler patch)

[Walter Bright]

Georg Wrede wrote:
> Thanks, Don and Walter!!

I originally had this in the Digital Mars C compiler years and years 
ago. I dropped it and moved away from it because not a single person 
noticed or cared about it, plus the standard C spec failed to 
distinguish between quiet and signaling nan's.

I'm glad to see it actually being of value, and it's a great idea.