avoid extra variable during void pointer cast

[Moritz Maxeiner via Digitalmars-d-learn]

On Sunday, 14 May 2017 at 22:00:58 UTC, Stanislav Blinov wrote:
> [...]
>
> Yep, it's an alias to template function instantiation, that is, 
> concrete function - a symbol.

Yes, my bad :(

>
> But of course, it *is* going to be called on every 
> "dereference". GDC optimizes the call away starting at -O1, LDC 
> needs -O2. DMD makes temporaries :)

Which just reinforces my personal mantra: Develop with dmd, 
release with ldc or gdc.