Results are in: static foreach is a slower than hand unrolling your loops or using mixins.

[Gareth Charnock]

Correction, two of the loops were going backwards (mixin and hand 
unrolled). Fixed this but the conclusion remains the same.

Gareth Charnock wrote:
> I managed to get some free time to look at this and it would appear that 
> static foreach is slower than hand unrolling a loop. Fortunately there 
> are no detectable differences between hand unrolling a loop and building 
> the body of the loop in a compile time string and using a mixin. Results 
> are here:
> 
> http://github.com/gcharnock/phoboslinalgebra/blob/4d1f62ce2f866acf24f237be77a2b59158571de0/staticloop_results.txt 
> 
> 
> Test program is here:
> 
> http://github.com/gcharnock/phoboslinalgebra/blob/4d1f62ce2f866acf24f237be77a2b59158571de0/staticloops.d 
>