Why is complex being deprecated again?

[Stewart Gordon]

On 15/04/2012 23:31, bearophile wrote:
<snip>
> You have seen std.math.expi, that returns a creal using the instructions sincos plus a
> registers swap (so it returns complex(cos,sin)). Maybe it's worth adding to Phobos a fully
> inlinable core.bitop.sincos intrinsic that performs just the sincos.

I'd never imagined that x86 CPUs had such an instruction built in, but I can begin to 
imagine why.

But in what way are trig functions bit-level operations?

Stewart.