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From: Emanuel Berg <embe8573@student.uu.se>
To: help-gnu-emacs@gnu.org
Subject: Re: Defining functions within functions?
Date: Tue, 24 May 2016 23:36:26 +0200	[thread overview]
Message-ID: <86r3crgmud.fsf@student.uu.se> (raw)
In-Reply-To: barmar-231605.12151824052016@88-209-239-213.giganet.hu

Barry Margolin <barmar@alum.mit.edu> writes:

>> "reassign the variable"?
>
> (defun foo-local (a) 
>   (flet ((bar ()
>            (incf a)))
>     (bar))
>   a)
>
> vs.
>
> (defun foo-global (a)
>   (setq a (bar a))
>   a)
> (defun bar (a)
>   (+1 a))

OK, so it is a situation with global variables?

Personally I never (?) use `setq' in defuns so
again this situation is hard to visualize in an
applied setting, but yes, I see
the reassignment.

-- 
underground experts united .... http://user.it.uu.se/~embe8573
Emacs Gnus Blogomatic ......... http://user.it.uu.se/~embe8573/blogomatic
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  reply	other threads:[~2016-05-24 21:36 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-23  5:13 Defining functions within functions? Marcin Borkowski
2016-05-23  5:34 ` Eric Abrahamsen
2016-05-24 21:28   ` Marcin Borkowski
2016-05-23 20:09 ` Michael Heerdegen
2016-05-24 21:31   ` Marcin Borkowski
2016-05-24 21:56     ` Drew Adams
2016-05-24 22:10       ` Carlos Konstanski
2016-05-25  6:21         ` Marcin Borkowski
     [not found]       ` <mailman.224.1464127813.1216.help-gnu-emacs@gnu.org>
2016-05-24 22:21         ` Emanuel Berg
2016-05-25  6:20       ` Marcin Borkowski
2016-05-25  8:36         ` Stefan Monnier
2016-05-25  8:43           ` Nicolas Petton
2016-05-25 19:30             ` Marcin Borkowski
2016-05-25  9:07           ` tomas
2016-05-25 15:41             ` Marcin Borkowski
2016-05-25 14:18         ` Drew Adams
2016-05-25 15:39           ` Marcin Borkowski
     [not found]           ` <mailman.255.1464190813.1216.help-gnu-emacs@gnu.org>
2016-05-26  7:52             ` Emanuel Berg
     [not found]     ` <mailman.223.1464127012.1216.help-gnu-emacs@gnu.org>
2016-05-24 22:17       ` Emanuel Berg
     [not found]   ` <mailman.222.1464125502.1216.help-gnu-emacs@gnu.org>
2016-05-24 21:46     ` Emanuel Berg
     [not found] ` <mailman.141.1464034180.1216.help-gnu-emacs@gnu.org>
2016-05-24  7:13   ` Emanuel Berg
2016-05-24 14:33     ` Barry Margolin
2016-05-24 15:43       ` Emanuel Berg
2016-05-24 16:15         ` Barry Margolin
2016-05-24 21:36           ` Emanuel Berg [this message]
     [not found] <mailman.94.1463980455.1216.help-gnu-emacs@gnu.org>
2016-05-23  7:47 ` Emanuel Berg

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