if(arr) now a warning

[Kagamin via Digitalmars-d]

On Sunday, 19 April 2015 at 08:05:46 UTC, Jonathan M Davis wrote:
> the C folks would think that
> the current behavior of it being equivalent to if(arr is null) 
> would be more
> intuitive, since they're used to thinking of arrays as pointers.

Are they used to disregard value types too? I don't see it 
working in C: http://ideone.com/rzSSlx