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* bug#21058: 25.0.50; delete-dups doesn't delete all duplicates
@ 2015-07-15  5:40 Ari Roponen
  2015-07-15  6:14 ` Vaidheeswaran C
  2015-07-16 14:55 ` Paul Eggert
  0 siblings, 2 replies; 3+ messages in thread
From: Ari Roponen @ 2015-07-15  5:40 UTC (permalink / raw)
  To: 21058

Tags: patch

Function delete-dups doesn't delete all duplicates from long
lists:

(delete-dups (mapcar (lambda (x) (% x 3)) (number-sequence 0 102)))
=> (0 1 2 1 0 2 1 0 2 1 0 2 ...)

The following patch seems to fix the problem.


	* lisp/subr.el (delete-dups): Fix paren typo.

diff --git a/lisp/subr.el b/lisp/subr.el
index 5bd4bb4..e2c1bae 100644
--- a/lisp/subr.el
+++ b/lisp/subr.el
@@ -426,8 +426,8 @@ one is kept."
             (let ((elt (car retail)))
               (if (gethash elt hash)
                   (setcdr tail (cdr retail))
-                (puthash elt t hash)))
-            (setq tail retail)))
+                (puthash elt t hash)
+                (setq tail retail)))))
       (let ((tail list))
         (while tail
           (setcdr tail (delete (car tail) (cdr tail)))


In GNU Emacs 25.0.50.2 (x86_64-unknown-linux-gnu, GTK+ Version 3.17.4)
 of 2015-07-14 on arirop
Repository revision: 6a7e718916d00dbacaa765669f389b86f33075f5
Windowing system distributor `Fedora Project', version 11.0.11702000
System Description:	Fedora release 23 (Rawhide)

-- 
Ari Roponen





^ permalink raw reply related	[flat|nested] 3+ messages in thread

* bug#21058: 25.0.50; delete-dups doesn't delete all duplicates
  2015-07-15  5:40 bug#21058: 25.0.50; delete-dups doesn't delete all duplicates Ari Roponen
@ 2015-07-15  6:14 ` Vaidheeswaran C
  2015-07-16 14:55 ` Paul Eggert
  1 sibling, 0 replies; 3+ messages in thread
From: Vaidheeswaran C @ 2015-07-15  6:14 UTC (permalink / raw)
  To: Ari Roponen, 21058

On Wednesday 15 July 2015 11:10 AM, Ari Roponen wrote:
> Tags: patch
> 
> Function delete-dups doesn't delete all duplicates from long
> lists:

I had issues with delete-dups as well.

See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=20721#26










^ permalink raw reply	[flat|nested] 3+ messages in thread

* bug#21058: 25.0.50; delete-dups doesn't delete all duplicates
  2015-07-15  5:40 bug#21058: 25.0.50; delete-dups doesn't delete all duplicates Ari Roponen
  2015-07-15  6:14 ` Vaidheeswaran C
@ 2015-07-16 14:55 ` Paul Eggert
  1 sibling, 0 replies; 3+ messages in thread
From: Paul Eggert @ 2015-07-16 14:55 UTC (permalink / raw)
  To: Ari Roponen; +Cc: 21058-done

Thanks for the bug report and patch.  I installed it in your name as master 
commit 572cd26f3f03995dbb3689b8a6f0a575ec9b9cb6.





^ permalink raw reply	[flat|nested] 3+ messages in thread

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-- links below jump to the message on this page --
2015-07-15  5:40 bug#21058: 25.0.50; delete-dups doesn't delete all duplicates Ari Roponen
2015-07-15  6:14 ` Vaidheeswaran C
2015-07-16 14:55 ` Paul Eggert

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