[ruby-core:93950] [Ruby master Bug#16026] `Set#count` performance issues

From: samuel@...
Date: 2019-07-27 16:15:36 UTC
List: ruby-core #93950
Issue #16026 has been updated by ioquatix (Samuel Williams).


I understand and I agree with your logic.

Maybe it's worth considering, `#count` with no arguments can invoke `#size`. What do you think?

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Bug #16026: `Set#count` performance issues
https://bugs.ruby-lang.org/issues/16026#change-80140

* Author: ioquatix (Samuel Williams)
* Status: Open
* Priority: Normal
* Assignee: knu (Akinori MUSHA)
* Target version: 
* ruby -v: 
* Backport: 2.5: UNKNOWN, 2.6: UNKNOWN
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`Set#size` is O(1), but `Set#count` is O(N).

I would like to add `alias count size` to `class Set`

Is it okay?



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