prune with dirEntries

[Dan]

On Friday, 30 November 2012 at 19:52:26 UTC, Jonathan M Davis 
wrote:
>
> If you're compiling with -property, filter must have the parens 
> for the
> function call as it's a function, not a property. The !() is 
> for the template
> arguments and is separate from the parens for the function 
> call. That means
> that if you're compiling with -property and using UFCS, then 
> you end up with
> range.filter!(pred)(), whereas you have range.filter!(pred).

That is it, thanks. The first project I looked at was vibe and 
they used that flag so I put it in my script.

Regarding the timings, the relative orderings are the same, but 
the magnitude of the difference is much more reasonable now that 
I switched back to release of phobos, druntime (oops :-).

No filtering:
   parallel: 0.268 sec
   serial: 0.125 sec

With filtering:
   parallel: 0.119 sec
   serial: 0.064 sec