Feature #15559: Logical XOR (^^) operator

• Status: Open
• Priority: Normal
• Assignee: -
• Target version: -

[baweaver (Brandon Weaver)]

Currently we have bitwise & and logical &&, and bitwise | and logical ||. Would it be possible to have logical ^^ in addition to the bitwise ^ for XOR?

[mrkn (Kenta Murata)]

You can write expr1 ^^ expr2 as !expr1 != !expr2 in the current Ruby.
If both expr1 and expr2 are boolean, you can write expr1 != expr2.

I think ^^ can be useful for the case that both expr1 and expr2 are not boolean.
Have you ever write such conditional expressions?

[mrkn (Kenta Murata)]

I think != is easier to understand than ^^.

[mame (Yusuke Endoh)]

Would it be possible to have logical ^{^} in addition to the bitwise ^ for XOR?

I think it is possible, but we need a good reason to do so. Do you have any use case?

[sawa (Tsuyoshi Sawada)]

Unlike && and ||, which involve short-circuit evaluation, and hence are keywords rather than methods, the proposed ^^ will not involve short-circuit evaluation. Which is the intended proposal: as a keyword, or as a method?