signaling NaNs and quiet NaNs

[dennis luehring]

Walter Bright schrieb:
> Paul D. Anderson wrote:
>> dennis luehring Wrote:
>> 
>>> on http://en.wikipedia.org/wiki/IEEE_754 they talk about
>>> 
>>> quiet and singnaling NaNs - which of these supports D and how?
>>> 
>>> do i get an execption when a signaling NaN occure?
>>> 
>>> ciao dennis
>> 
>> Walter can give the definitive answer but I'm pretty sure that (at
>> the moment) D does not use signaling NaNs. That is, any signaling
>> NaNs that occur are only visible as quiet NaNs, and therefore, no
>> exceptions are thrown.
>> 
> 
> 
> Signaling NaNs have fallen out of favor. No exceptions get raised for them.

a signaling NaN becomes then just a quiet NaN (as Paul D. Anderson said) 
- no different behaviour?

ciao dennis