Why does this not work?

[Adam D. Ruppe via Digitalmars-d-learn]

On Friday, 1 January 2016 at 17:00:23 UTC, TheDGuy wrote:
> If i had known that blog existed. I think your example at the 
> end of the page explains the problem really well.
> Thanks!

I just wrote that example in response to this thread :P (the 
overall thing there is something i started last week to 
reorganize the official docs to be easier to read and edit)


But it is a common enough question that it should just be in the 
documentation.