Re: tostring vs. nan, inf

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Subject: Re: tostring vs. nan, inf
From: Krunal Rao <krunal.rao78@...>
Date: 2012年4月10日 14:46:14 +0100

Check equality of math.abs(x) with math.huge.

On Apr 10, 2012 2:40 PM, "Patrick Rapin" <toupie300@gmail.com> wrote:

> function isnan(x) return x~=x end
> function isinf(x) return (x+1)==x end

Well, there seems to be a problem with the second one :

> return 1e16
1e+016
> return isinf(1e16)
true

References:
- tostring vs. nan, inf, Alexander Gladysh
- Re: tostring vs. nan, inf, Luiz Henrique de Figueiredo
- Re: tostring vs. nan, inf, Alexander Gladysh
- Re: tostring vs. nan, inf, Martin Guy
- Re: tostring vs. nan, inf, Luiz Henrique de Figueiredo
- Re: tostring vs. nan, inf, Patrick Rapin

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