Re: infnan()?
You should also be able to use the constant _QNAN. Check out /usr/include/nan.h.
Stuart Marshall wrote:
> Hi,
>
> I would like to use NaN's. It appears that isnan()
> works as advertised so I can check for NaN. However,
> there is a man page for infnan() but no such function
> appears to be available. Does anyone know the proper
> way to generate a NaN value? (I am using NaN as an
> initialization value so that I can check that a valid
> value is used later.) For the moment I am using NAN
> as defined in nan.h but it requires the use of
> "#define _GNU_SOURCE 1". I would like to keep the code
> somewhat portable.
>
> thanks,
> Stuart
>
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Jens B. Jorgensen
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Reply to:
- References:
- infnan()?
- From: Stuart Marshall <marshall@sioux.llnl.gov>