Please rid me of this goto

[Ola Fosheim Grøstad via Digitalmars-d]

On Friday, 24 June 2016 at 13:51:33 UTC, Andrei Alexandrescu 
wrote:
> On 06/24/2016 02:58 AM, Martin Tschierschke wrote:
>> Second: Just look at Wikipedia and take the IEEE floating 
>> point standard:
>> https://en.wikipedia.org/wiki/Exponentiation#Zero_to_the_power_of_zero
>
> Scrolling down, I see how IEEE prescribes pown(0, 0) to return 
> 1. I guess that's a good practical argument. -- Andrei

Nope, pown requires an exact integer, powr(0.0,0.0) yields NaN.