[Cfp-interest 1805] Re: Exact subnormal results

David Hough CFP pcfp at oakapple.net
Wed Oct 21 06:53:29 PDT 2020


>> The second case means that underflow can't be detected just by looking 
>> for a subnormal or zero result. Worse, in binary, a minimum normalized 
>> result handled by default might be accompanied by an underflow flag in 
>> some implementations and not others.

> Can you point me somewhere I can read a bit more on the above?

https://754r.ucbtest.org/background/exceptions.txt


Unfortunately 754 default underflow handling doesn't make a lot of sense
without the context of alternate exception handling, which C so far avoided.



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