Phobos addition formal review: std.experimental.allocator

[Andrei Alexandrescu via Digitalmars-d]

On 6/21/15 4:47 AM, Dicebot wrote:
> 6. Usage of ternary is not always clear / justified. In `IAllocator` it
> is explained and makes sense but there are things like
> http://erdani.com/d/phobos-prerelease/std_experimental_allocator_bitmapped_block.html
> ("Ternary empty() - Returns true iff no memory is currently allocated
> with this allocator"). I am still not sure why it is used there instead
> of simple boolean.

Founds a bunch of issues with the docs indeed; switching the static 
interface from bool to Ternary (for the sake of unification with 
IAllocator) was a last-minute thing.

https://github.com/D-Programming-Language/phobos/commit/16f5a5631cf1f2eeea3779785c3ea17682b8ff45


Andrei