[Cfp-interest] nextup()

[Fred J. Tydeman]

On Mon, 20 Aug 2018 15:58:21 -0700 Jim Thomas wrote:
>
>>> Also, if long double is a pair of doubles, what is nextup(1.L)?
>>> Is it
>>> 1.L + LDBL_EPSILON
>>> or
>>> 1.L + LDBL_TRUE_MIN == 1.L + LDBL_EPSILON * LDBL_MIN
>> 
>> I'd think the latter. The ragged precision of double-double is already a problem in C (e.g., what is p?). and not something CFP needs to address.
>

We could add:

If the result is finite, it shall be one of zero, subnormal, or a normalized number.


---
Fred J. Tydeman        Tydeman Consulting
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