hashed array?

[Joseph Rushton Wakeling]

On 11/12/2012 04:49 PM, monarch_dodra wrote:
> Wait. That doesn't work actually. This does.
>      auto add(T value)
>      {
>          return _data[value] = cast(void[0]) null;
>      }

Only with DMD.  GDC and LDC both reject this formulation -- it seems better to 
use byte instead of void[0].

The problem is this workaround version blows up massively with number of entries 
-- disproportionately to how much memory it would take to simply store all the 
key values. :-(