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From: | Oleksandr Gavenko |
Subject: | Re: How check when symbol is introduced in Emacs? |
Date: | Wed, 19 Jan 2011 18:02:36 +0200 |
User-agent: | Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 |
On 19.01.2011 17:19, Eli Zaretskii wrote:
From: Oleksandr Gavenko<gavenko@bifit.com.ua> Date: Wed, 19 Jan 2011 12:23:59 +0200 Usually I get Error with previous Emacs version when symbol is undefined. To workaround I use code like: (when (or (>= emacs-major-version 23) (and (= emacs-major-version 22) (>= emacs-minor-version 2))) (setq 'symb val) ) But I must know low limit of version to get better code.Why not use `boundp'?
This is interesting tips. I already use this but not always.
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