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[debbugs-tracker] bug#16067: closed (24.3; Documentation bug: Example co

From: GNU bug Tracking System
Subject: [debbugs-tracker] bug#16067: closed (24.3; Documentation bug: Example code in (elisp) Anonymous Functions)
Date: Fri, 06 Dec 2013 14:18:01 +0000

Your message dated Fri, 06 Dec 2013 09:17:26 -0500
with message-id <address@hidden>
and subject line Re: bug#16067: 24.3; Documentation bug: Example code in 
(elisp) Anonymous Functions
has caused the debbugs.gnu.org bug report #16067,
regarding 24.3; Documentation bug: Example code in (elisp) Anonymous Functions
to be marked as done.

(If you believe you have received this mail in error, please contact

16067: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16067
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--- Begin Message --- Subject: 24.3; Documentation bug: Example code in (elisp) Anonymous Functions Date: Fri, 6 Dec 2013 19:18:53 +1300 (NZDT) User-agent: SquirrelMail/1.4.5
Re: Info node (elisp) Anonymous Functions

The final piece of code is prefixed with "This would not happen if, say,
you had constructed the anonymous function by quoting it as a list",
but the code then fails to actually do that. It is actually identical
to the initial version of the function:

>    In the following example, we define a `change-property' function
> that takes a function as its third argument, followed by a
> `double-property' function that makes use of `change-property' by
> passing it an anonymous function:
>      (defun change-property (symbol prop function)
>        (let ((value (get symbol prop)))
>          (put symbol prop (funcall function value))))
>      (defun double-property (symbol prop)
>        (change-property symbol prop (lambda (x) (* 2 x))))
> Note that we do not quote the `lambda' form.
>    If you compile the above code, the anonymous function is also
> compiled.  This would not happen if, say, you had constructed the
> anonymous function by quoting it as a list:
>      (defun double-property (symbol prop)
>        (change-property symbol prop (lambda (x) (* 2 x))))
> In that case, the anonymous function is kept as a lambda expression in
> the compiled code.  The byte-compiler cannot assume this list is a
> function, even though it looks like one, since it does not know that
> `change-property' intends to use it as a function.

In GNU Emacs 24.3.1 (x86_64-unknown-linux-gnu, GTK+ Version 2.20.1)
 of 2013-12-06 on scmp-qa
Windowing system distributor `The X.Org Foundation', version 11.0.11103000
System Description:     Ubuntu 10.04.4 LTS

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 `configure '--prefix=/var/data/emacs/emacs24/emacs-24.3/usr/local'

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--- End Message ---
--- Begin Message --- Subject: Re: bug#16067: 24.3; Documentation bug: Example code in (elisp) Anonymous Functions Date: Fri, 06 Dec 2013 09:17:26 -0500 User-agent: Gnus (www.gnus.org), GNU Emacs (www.gnu.org/software/emacs/)
Version: 24.4

Thanks. This was fixed some months ago in the sources.

--- End Message ---

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