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

[deadalnix via Digitalmars-d]

On Friday, 15 May 2015 at 19:49:27 UTC, Andrei Alexandrescu wrote:
> Well I added the rule that allocate(0) should return null, 
> there are a few more tests but probably nothing worrisome: 
> https://github.com/andralex/phobos/commit/f73f6ecf1b45b0fc3cffd50d375eb15eb2311220
>
> Andrei

I do think think this is what makes sense for us:
  - We should throw in case of error, not return null.
  - There is no point in allocating something if 0 byte are going 
to be used.

The thing we got to make sure is very clear in the spec is that 
free, realloc and so on functions are able to accept null as 
input.