How to test if float is NaN?

[clayasaurus]

Thomas Kuehne wrote:
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> clayasaurus schrieb am 2006-05-17:
>> How do you test if float is Nan? == and is doesn't seem to work.
> 
> 1)
> #
> # if(num !<>= 0.0){
> #     // ...
> # }

Nice, learn something new every day.

> 
> 2)
> # import std.math;
> #
> # if(isnan(num)){
> #     // ...
> # }
> 
> Thomas
> 
> 
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Thank you Thomas and Jarret :)

~ Clay