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From: "Clément Pit-Claudel" <clement.pitclaudel@live.com>
To: Noam Postavsky <npostavs@gmail.com>,
	Michael Heerdegen <michael_heerdegen@web.de>
Cc: 31715@debbugs.gnu.org
Subject: bug#31715: cl-incf and cl-decf error out when passed a nil-valued variable as 'offset'
Date: Tue, 5 Jun 2018 11:19:22 -0400	[thread overview]
Message-ID: <bae46622-25a7-a949-f965-021e8e965b5c@live.com> (raw)
In-Reply-To: <871sdm851q.fsf@gmail.com>


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On 2018-06-04 20:12, Noam Postavsky wrote:
> I couldn't find any other cases of optional parameters in core macros.

I'm not sure which macros count as core macros.  In cl-lib itself there's cl-assert, which seems to behave the same as cl-incf.

In the rest of Emacs there are lots of other examples.  Many of them (for example semantic-find-tags-by-name or calendar-increment-month) seem to work when passed a nil-valued variable, but many others behave like cl-incf (for example gnus-summary-article-score).

Clément.


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  parent reply	other threads:[~2018-06-05 15:19 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-04 20:06 bug#31715: cl-incf and cl-decf error out when passed a nil-valued variable as 'offset' Clément Pit-Claudel
2018-06-04 22:58 ` Noam Postavsky
2018-06-04 23:43   ` Michael Heerdegen
2018-06-05  0:12     ` Noam Postavsky
2018-06-05  0:40       ` Michael Heerdegen
2022-04-21 13:11         ` Lars Ingebrigtsen
2018-06-05 15:19       ` Clément Pit-Claudel [this message]
2018-06-05 22:53         ` Noam Postavsky
2018-06-05 23:01           ` Clément Pit-Claudel
2018-06-05 23:26             ` Noam Postavsky
2018-06-05 23:36               ` Clément Pit-Claudel
2018-06-06  0:32               ` Michael Heerdegen
2018-06-06  0:37                 ` Noam Postavsky
2018-06-05 15:03   ` Clément Pit-Claudel

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