Got it. Awesome.

Good job, Zach


On Mon, Apr 21, 2014 at 1:52 AM, Zach Tellman <ztell...@gmail.com> wrote:

> I could represent the map {0 :foo, 1000000 :bar} as an array, but it would
> have to be a million element array with a lot of empty space. This would be
> (maybe) faster w.r.t. lookups, but would be vastly slower for enumerating
> entries, merging other maps, and adding keys that are larger than the
> boundaries of the underlying array.  This data structure, which is
> described by the paper linked in the readme,  I also mention the
> possibility of using this to represent a sparse vector (as opposed to the
> array, which is dense) in the readme.
>
> Hope that answers your question,
> Zach
>
> On Sunday, April 20, 2014 9:44:21 PM UTC-7, Plinio Balduino wrote:
>>
>> "it's an immutable map that can only have positive integers as keys" -- Like
>> an array?
>>
>> (My question is child of my complete ignorance, and I'm not questioning
>> your knowledge or motivation)
>>
>> Plínio
>>
>>
>> On Mon, Apr 21, 2014 at 1:40 AM, Zach Tellman <ztel...@gmail.com> wrote:
>>
>>> This one's pretty simple: it's an immutable map that can only have
>>> positive integers as keys.  It can be found at
>>> https://github.com/ztellman/immutable-int-map.
>>>
>>> The one interesting aspect of this is that it has an efficient merge
>>> mechanism, which means it plays better with Clojure's reducer framework
>>> than Clojure's own data structures.  This was a non-obvious consequence to
>>> me before I started working on it, so I figure others might also find it
>>> interesting.
>>>
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