[Cfp-interest 3305] Re: ERANGE question

Fred J. Tydeman tydeman at tybor.com
Wed Oct 9 04:59:24 PDT 2024


On Wed, 09 Oct 2024 09:30:10 +0200 Paul Zimmermann wrote:
>
>Should errno be set to ERANGE, even if x^y rounds to DBL_MAX?

If the round to nearest value is DBL_MAX, then no ERANGE and no overflow.

If the round to nearest value is larger than DBL_MAX, but the round to zero
is DBL_MAX, then yes to ERANGE and overflow.



---
Fred J. Tydeman        Tydeman Consulting
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