[:] as empty associative array literal, plus warning for null

[Regan Heath]

On Thu, 04 Jul 2013 15:35:30 +0100, Andrei Alexandrescu  
<SeeWebsiteForEmail at erdani.org> wrote:

> On 7/4/13 6:32 AM, Steven Schveighoffer wrote:
>> I would not be opposed to a pull request that made [] be non-null, as
>> long as it doesn't allocate.
>
> What would be the benefits?

Being able to naturally specify a non-null empty array (literal) such  
that...

char[] n = null;
char[] e = [];

assert(n is null)
assert(e !is null);

R

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