[ruby-core:69764] [Ruby trunk - Bug #11315] [PATCH] Add Array#^ for parity with other set-like operations.

Issue #11315 has been updated by D.E. Akers.

File array_xor_recycle_seen.patch added

I forgot to recycle the `seen` hash. This last fix should finalize the patch, unless there is some very clever way to XOR two arrays without requiring two tables or a second pass through one of the arrays.

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Bug #11315: [PATCH] Add Array#^ for parity with other set-like operations.
https://bugs.ruby-lang.org/issues/11315#change-53140

* Author: D.E. Akers
* Status: Open
* Priority: Normal
* Assignee: 
* ruby -v: 
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
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## Proposal

It is proposed that `Array` be given an "XOR" method which returns the symmetric difference between itself and another array.

## Rationale

`#&` and `#|` need a friend to complete the set of set-like operations on `Array`.

---Files--------------------------------
array_xor.patch (2.69 KB)
array_xor_vodka.patch (2.97 KB)
array_xor_recycle_seen.patch (3 KB)


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