сб, 29 июн. 2019 г. в 13:01, Henning Thielemann <lemming@henning-thielemann.de>:
> There is already the enummapset package.

Isn't it using fromEnum/toEnum under the hood, which might have bigger
performance penalty than `coerce`?

On the other hand, sure, the original suggestion can also be made as a
separate library wrapping IntMap/IntSet and all the calls to coerce.
I'm happy with that approach too.

--
  Georg Rudoy
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