std.allocator.allocate(0) -> return null or std.allocator.allocate(1)?

[Andrei Alexandrescu via Digitalmars-d]

On 5/15/15 9:36 AM, Andrei Alexandrescu wrote:
> Anyhow, on to D.

To clarify: I want to request all allocators to return null if asked for 
zero bytes. -- Andrei