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Re: [COMMITTERS] pgsql: Put back ERANGE test in dpow(). - Mailing list pgsql-patches

From Tom Lane
Subject Re: [COMMITTERS] pgsql: Put back ERANGE test in dpow().
Date
Msg-id 26099.1168056457@sss.pgh.pa.us
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In response to Re: [COMMITTERS] pgsql: Put back ERANGE test in  (Bruce Momjian <bruce@momjian.us>)
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Bruce Momjian <bruce@momjian.us> writes:
> Actually, when you return ERANGE, what is 'result'?  Nan?  Inf?  finite?

I believe it's HUGE_VAL (the largest finite value) ... which is
something I don't want to explicitly test for, any more than I liked
the explicit use of min/max values before.  Your isinf test is OK
because the point is that we want to replace any non-Inf result with Inf
if the result overflowed.

            regards, tom lane

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