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bug#40180: 27.0.90; cl-concatenate returns wrong result


From: Stephen Berman
Subject: bug#40180: 27.0.90; cl-concatenate returns wrong result
Date: Sun, 22 Mar 2020 13:00:02 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux)

On Sun, 22 Mar 2020 07:53:31 -0400 Noam Postavsky <address@hidden> wrote:

> tags 40180 + patch
> quit
>
> Stephen Berman <address@hidden> writes:
>
>> Similarly, (cl-concatenate 'vector '[a b c] '[d e f]) returns `[[a b c]
>> [d e f]]' and worse, (cl-concatenate 'string "abc" "def") raises the
>> error: Wrong type argument: characterp, "abc".  This is because
>> cl-concatenate is now defined in terms of seq-concatenate, which is
>> defined by cl-defgeneric, which adds an extra pair of parens around the
>> SEQUENCES argument
>
> I think the problem is just that cl-concatenate should call
> seq-concatenate with apply.

Oh, yes, of course.

Steve Berman





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