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From: Johan Råde (rade_at_[hidden])
Date: 2006-07-25 11:55:47

John Maddock wrote:
> Joe Gottman wrote:
>> Several libraries have an is_nan() function buried deep in the
>> code. Are there any plans to make a general is_nan function
>> available? This would be quite useful, as well as similar functions
>> like is_finite.
> Yes! I'm working on these and other functions, see
> for a reasonably recent sets of docs,
> follow the link to floating point classification.
> HTH, John.
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I think John Maddock is well qualified to submit a general is_nan function.

He has obviously thought a lot about floating point arithemtic and
tested things on several different platforms. He is working on a math
tool kit library that contains an is_nan function. Maybe he could just
extract that function and submit it.

--Johan Råde

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