Re: Geometry test on NetBSD (was Re: RC1?)

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От Tom Lane
Тема Re: Geometry test on NetBSD (was Re: RC1?)
Дата
Msg-id 28813.1037772912@sss.pgh.pa.us
обсуждение исходный текст
Ответ на Re: Geometry test on NetBSD (was Re: RC1?)  (Bruce Momjian <pgman@candle.pha.pa.us>)
Ответы Re: [PORTS] Geometry test on NetBSD (was Re: RC1?)  ("Henry B. Hotz" <hotz@jpl.nasa.gov>)
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Дерево обсуждения 
Bruce Momjian <pgman@candle.pha.pa.us> writes:
> Tom, can you clarify why -0 is valid.

The IEEE spec absolutely thinks that -0 and +0 are distinct entities.
I don't remember why, at one in the morning ... but if you insist I'm
sure that plenty sufficient numerical-analysis reasons can be produced.
The guys who wrote that spec knew what they were doing (that's why it's
been adopted so universally).

            regards, tom lane

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