From: phillip.lord@newcastle.ac.uk (Phillip Lord)
To: emacs-devel@gnu.org
Subject: behaviour change in cl-subseq
Date: Wed, 05 Aug 2015 13:14:53 +0100 [thread overview]
Message-ID: <87pp32orsy.fsf@newcastle.ac.uk> (raw)
I've just had a bug report for pabbrev. The root cause is a change in
the implementation of cl-subseq.
In Emacs 24:
(cl-subseq '() 10 10) ;; nil
While in Emacs 25
In Emacs 25 `cl-subseq' has been redefined in terms of seq-subseq.
(seq-subseq '() 10 10) ;; errors
(cl-subseq '() 10 10) ;; errors
Which is a reasonably substantial change in the interface of cl-subseq.
The actual (exceptional) behaviour of cl-subseq is not documented, so
it's reasonable, but perhaps not sensible. It's easy to fix in pabbrev
(and anywhere) in a way which does not require me to probe for Emacs
versions.
I offer no opinions, just wanted to check whether this was intended.
Phil
next reply other threads:[~2015-08-05 12:14 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-05 12:14 Phillip Lord [this message]
2015-08-06 0:10 ` behaviour change in cl-subseq Leo Liu
2015-08-06 6:11 ` Tassilo Horn
2015-08-06 9:34 ` Phillip Lord
2015-08-06 9:48 ` Leo Liu
2015-08-07 14:00 ` Phillip Lord
2015-08-07 14:26 ` Nicolas Petton
2015-08-07 15:51 ` Phillip Lord
2015-08-07 16:08 ` Nicolas Petton
2015-08-07 21:23 ` Phillip Lord
2015-08-08 19:56 ` Nicolas Petton
2015-08-20 20:50 ` Phillip Lord
2015-08-21 0:02 ` Artur Malabarba
2015-08-06 8:08 ` Nicolas Petton
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