Re: Greatest Common Divisor
Vik Fearing <[email protected]>
| Newsgroups | gmane.comp.db.postgresql.devel.general |
|---|---|
| Message-ID | <[email protected]> |
On 04/01/2020 01:26, Vik Fearing wrote: > On 04/01/2020 01:21, Tom Lane wrote: >> Vik Fearing <[email protected]> writes: >>> On 03/01/2020 20:14, Fabien COELHO wrote: >>>> I'm unsure about gcd(INT_MIN, 0) should error. Possibly 0 would be nicer? >>> What justification for that do you have? >> Zero is the "correct" answer for that, isn't it, independently of overflow >> considerations? > > I would say not. The correct answer is INT_MIN but we've decided a > negative result is not desirable. Wolfram Alpha agrees. https://www.wolframalpha.com/input/?i=gcd%28-9223372036854775808%2C0%29 -- Vik Fearing