Checking if an Integer is an Exact Binary Power

[Andrei Alexandrescu via Digitalmars-d]

On 04/25/2016 03:21 PM, Solomon E wrote:
> There are other parts in isPow2F where I'm not sure exactly what the
> bits are doing, such as how the compiler makes the result negative

I suggest you simply consider x unsigned. There is no value to the 
discussion brought by negative numbers, and implementation-wise you can 
insert a cast or let the overload mechanism only use unsigned integers. 
-- Andrei