From: Michael Heerdegen <michael_heerdegen@web.de>
To: "Basil L. Contovounesios" <contovob@tcd.ie>
Cc: Stefan Monnier <monnier@iro.umontreal.ca>,
Barry Fishman <barry@ecubist.org>,
emacs-devel@gnu.org
Subject: Re: 7 logical-xor implementations in source tree
Date: Wed, 31 Jul 2019 23:15:32 +0200 [thread overview]
Message-ID: <87tvb17vnv.fsf@web.de> (raw)
In-Reply-To: <87y30eymw6.fsf@tcd.ie> (Basil L. Contovounesios's message of "Wed, 31 Jul 2019 23:22:49 +0300")
"Basil L. Contovounesios" <contovob@tcd.ie> writes:
> If I had to pick one or the other, I would go with xor purely because it
> is the one that has been copied several times. But I am also perfectly
> happy with bool-equal, especially if it is the historically/classically
> preferred function.
I also prefer xor. bool-equal doesn't harmonize with the other
prominent equivalence predicates "eq" and "equal" because it sounds
similar to "equal" but is something totally different (actually "equal"
already is a weird name, but it's what we have). OTOH, if you argue
that "equal" is a superset of "eq", and "bool-equal" a superset of
"equal" it would make some sense.
But "bool-equal" still makes me think about testing equality of some
data, while this is more about testing conditions, because the arguments
will most likely already be the result of some test, instead of some
data that has been constructed and we are inspecting.
Michael.
next prev parent reply other threads:[~2019-07-31 21:15 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-22 18:48 7 logical-xor implementations in source tree Oleh Krehel
2019-07-22 21:47 ` Basil L. Contovounesios
2019-07-24 22:17 ` Basil L. Contovounesios
2019-07-24 23:15 ` Stefan Monnier
2019-07-24 23:44 ` Basil L. Contovounesios
2019-07-25 12:07 ` Mattias Engdegård
2019-07-25 17:28 ` Paul Eggert
2019-07-25 17:46 ` Mattias Engdegård
2019-07-28 7:09 ` Philippe Schnoebelen
2019-07-28 8:04 ` Alan Mackenzie
2019-07-28 19:43 ` Marcin Borkowski
2019-07-30 9:36 ` Alan Mackenzie
2019-07-30 10:57 ` Philippe Schnoebelen
2019-07-30 11:28 ` Andy Moreton
2019-07-30 12:34 ` Stefan Monnier
2019-07-30 14:25 ` Barry Fishman
2019-07-31 3:16 ` Richard Stallman
2019-07-31 15:20 ` Barry Fishman
2019-07-31 15:42 ` Stefan Monnier
2019-07-31 20:22 ` Basil L. Contovounesios
2019-07-31 21:15 ` Michael Heerdegen [this message]
2019-07-31 22:28 ` Mattias Engdegård
2019-07-31 23:39 ` Basil L. Contovounesios
2019-08-02 10:29 ` Mattias Engdegård
2019-08-02 10:59 ` Basil L. Contovounesios
2019-08-06 11:58 ` Mattias Engdegård
2019-07-31 20:31 ` Michael Heerdegen
2019-07-31 21:38 ` Drew Adams
2019-07-31 22:03 ` Drew Adams
2019-07-31 22:05 ` Basil L. Contovounesios
2019-07-31 23:20 ` Drew Adams
2019-08-01 0:09 ` Basil L. Contovounesios
2019-07-31 17:12 ` Marcin Borkowski
2019-07-23 8:39 ` Andy Moreton
2019-07-23 9:08 ` Basil L. Contovounesios
2019-07-23 9:14 ` Mattias Engdegård
2019-07-23 10:26 ` Andy Moreton
2019-07-23 10:40 ` Andreas Schwab
2019-07-23 12:11 ` Andy Moreton
2019-07-23 13:20 ` Basil L. Contovounesios
2019-07-23 13:54 ` Andy Moreton
2019-07-24 22:21 ` Basil L. Contovounesios
2019-07-23 10:44 ` Basil L. Contovounesios
2019-07-23 11:01 ` Yuri Khan
2019-07-25 21:46 ` Juri Linkov
2019-07-23 11:24 ` Noam Postavsky
2019-07-23 12:38 ` Stefan Monnier
2019-07-23 16:41 ` Mattias Engdegård
2019-07-23 17:12 ` Eli Zaretskii
2019-07-23 17:48 ` Paul Eggert
2019-07-23 19:45 ` Stefan Monnier
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