Why is this D code slower than C++?

[Bill Baxter]

%u wrote:
> Bradley Smith Wrote:
>> What technical documentation would be proper? What would it
>> contain?
> 
> As always such depends on the requirements of the presumed readers.
> 
> If you are able to change your position from the view of the porter to the view of a verifier or freshly introduced maintainer of the port, then you will have an impression of what you would want to look at first.
> 
> It is a pity as it stands, that the question for the content of the technical documentation raises at all.

Dude, it's a toy raytracer ported from some free code someone posted to 
a website somewhere.  Why should it come with gobs of documentation?

But anyway, the original code was part of a series of tutorials.  I 
think the version Bradley posted was probably from this installment:
    http://www.devmaster.net/articles/raytracing_series/part3.php
As the series goes on, the author adds more and more fancy features to 
the raytracer.  Anyway, the tutorials are already far more documentation 
than you'll find for most free code out in the wild.

--bb